diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index 7c4376e..7c17026 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -1,18 +1,13 @@
 /* eslint-env node */
-require('@rushstack/eslint-patch/modern-module-resolution')
+require('@rushstack/eslint-patch/modern-module-resolution');
 
 module.exports = {
   root: true,
-  extends: [
-    'plugin:vue/vue3-essential',
-    'eslint:recommended',
-    '@vue/eslint-config-typescript',
-    '@vue/eslint-config-prettier/skip-formatting'
-  ],
+  extends: ['plugin:vue/vue3-essential', 'eslint:recommended', '@vue/eslint-config-typescript', '@vue/eslint-config-prettier/skip-formatting'],
   rules: {
-    'vue/multi-word-component-names': 'off'
+    'vue/multi-word-component-names': 'off',
   },
   parserOptions: {
-    ecmaVersion: 'latest'
-  }
-}
+    ecmaVersion: 'latest',
+  },
+};
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..cbd1fe3
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,6 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "es5",
+  "printWidth": 100
+}
diff --git a/package.json b/package.json
index 822080b..786b6eb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pojazdownik",
-  "version": "1.8.2",
+  "version": "1.8.3",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/src/App.vue b/src/App.vue
index d7d74c2..e97941b 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -5,28 +5,29 @@
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
-import { useStore } from "./store";
-import ImageFullscreenPreview from "./components/utils/ImageFullscreenPreview.vue";
-import AppContainerView from "./views/AppContainerView.vue";
-import AppModals from "./components/app/AppModals.vue";
+import { defineComponent } from 'vue';
+import { useStore } from './store';
+import ImageFullscreenPreview from './components/utils/ImageFullscreenPreview.vue';
+import AppContainerView from './views/AppContainerView.vue';
+import AppModals from './components/app/AppModals.vue';
 
 export default defineComponent({
+  components: { ImageFullscreenPreview, AppContainerView, AppModals },
   data() {
     return {
       store: useStore(),
     };
   },
+
   async created() {
-    this.store.fetchStockInfoData();
     this.store.handleRouting();
+    this.store.setupAPIData();
   },
-  components: { ImageFullscreenPreview, AppContainerView, AppModals },
 });
 </script>
 
 <style lang="scss">
-@import "./styles/global.scss";
+@import './styles/global.scss';
 
 /* APP */
 #app {
diff --git a/src/components/app/AppModals.vue b/src/components/app/AppModals.vue
index ac83c64..761c640 100644
--- a/src/components/app/AppModals.vue
+++ b/src/components/app/AppModals.vue
@@ -7,9 +7,9 @@
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
-import { useStore } from "../../store";
-import RealStockCard from "../cards/RealStockCard.vue";
+import { defineComponent } from 'vue';
+import { useStore } from '../../store';
+import RealStockCard from '../cards/RealStockCard.vue';
 
 export default defineComponent({
   components: { RealStockCard },
diff --git a/src/components/app/Footer.vue b/src/components/app/Footer.vue
index aed8291..d0763bc 100644
--- a/src/components/app/Footer.vue
+++ b/src/components/app/Footer.vue
@@ -3,35 +3,32 @@
     <i18n-t keypath="footer.disclaimer" tag="div" class="text--grayed">
       <template #tos>
         <a style="color: #ccc" :href="$t('footer.tos-href')" target="_blank">
-          {{ $t("footer.tos") }}
+          {{ $t('footer.tos') }}
         </a>
       </template>
     </i18n-t>
 
-    <div class="text--grayed" v-if="store.stockData">
-      {{ $t("footer.version-check", { version: store.stockData.version }) }}
+    <div class="text--grayed" v-if="store.vehiclesAPIData">
+      {{ $t('footer.version-check', { version: store.vehiclesAPIData.version }) }}
     </div>
 
     <div>
       &copy;
-      <a href="https://td2.info.pl/profile/?u=20777" target="_blank"
-        >Spythere</a
-      >
-      {{ new Date().getUTCFullYear() }} | v{{ VERSION
-      }}{{ !isOnProductionHost ? "dev" : "" }}
+      <a href="https://td2.info.pl/profile/?u=20777" target="_blank">Spythere</a>
+      {{ new Date().getUTCFullYear() }} | v{{ VERSION }}{{ !isOnProductionHost ? 'dev' : '' }}
     </div>
   </footer>
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
-import packageInfo from "../../../package.json";
-import { useStore } from "../../store";
+import { defineComponent } from 'vue';
+import packageInfo from '../../../package.json';
+import { useStore } from '../../store';
 
 export default defineComponent({
   data() {
     return {
-      isOnProductionHost: location.hostname == "pojazdownik-td2.web.app",
+      isOnProductionHost: location.hostname == 'pojazdownik-td2.web.app',
       VERSION: packageInfo.version,
       store: useStore(),
     };
diff --git a/src/components/app/MainContainer.vue b/src/components/app/MainContainer.vue
index 95b59dd..3f5f7ad 100644
--- a/src/components/app/MainContainer.vue
+++ b/src/components/app/MainContainer.vue
@@ -8,11 +8,11 @@
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
-import LogoSection from "../sections/LogoSection.vue";
-import InputsSection from "../sections/InputsSection.vue";
-import TrainImageSection from "../sections/TrainImageSection.vue";
-import StockSection from "../sections/StockSection.vue";
+import { defineComponent } from 'vue';
+import LogoSection from '../sections/LogoSection.vue';
+import InputsSection from '../sections/InputsSection.vue';
+import TrainImageSection from '../sections/TrainImageSection.vue';
+import StockSection from '../sections/StockSection.vue';
 
 export default defineComponent({
   components: { LogoSection, InputsSection, TrainImageSection, StockSection },
@@ -20,7 +20,7 @@ export default defineComponent({
 </script>
 
 <style lang="scss" scoped>
-@import "../../styles/global.scss";
+@import '../../styles/global.scss';
 
 main {
   display: grid;
diff --git a/src/components/cards/RealStockCard.vue b/src/components/cards/RealStockCard.vue
index 44370cf..3c3fd2f 100644
--- a/src/components/cards/RealStockCard.vue
+++ b/src/components/cards/RealStockCard.vue
@@ -1,23 +1,15 @@
 <template>
-  <div
-    class="real-stock-card g-card"
-    @keydown.esc="store.isRealStockListCardOpen = false"
-  >
+  <div class="real-stock-card g-card" @keydown.esc="store.isRealStockListCardOpen = false">
     <div class="g-card_bg" @click="store.isRealStockListCardOpen = false"></div>
 
     <div class="card_content">
       <div class="card_nav">
         <div class="top-pane">
           <h1>
-            {{ $t("realstock.title") }}
-            <a href="https://td2.info.pl/profile/?u=17708" target="_blank"
-              >Railtrains997</a
-            >
+            {{ $t('realstock.title') }}
+            <a href="https://td2.info.pl/profile/?u=17708" target="_blank">Railtrains997</a>
           </h1>
-          <button
-            class="btn exit-btn"
-            @click="store.isRealStockListCardOpen = false"
-          >
+          <button class="btn exit-btn" @click="store.isRealStockListCardOpen = false">
             &Cross;
           </button>
         </div>
@@ -31,7 +23,7 @@
 
           <datalist id="readyStockDataList">
             <option
-              v-for="stock in store.readyStockList"
+              v-for="stock in store.realCompositionList"
               :value="stock.stockId"
               :key="stock.name"
             >
@@ -56,31 +48,22 @@
           </datalist>
 
           <button class="btn" @click="resetStockFilters">
-            {{ $t("realstock.action-reset") }}
+            {{ $t('realstock.action-reset') }}
           </button>
         </div>
       </div>
 
       <ul class="card_list" ref="list" @scroll="onListScroll">
-        <li
-          v-for="rStock in computedReadyStockList"
-          :key="rStock.stockId"
-          :data-last-selected="store.chosenRealStockName === rStock.stockId"
-        >
+        <li v-for="rStock in computedReadyStockList" :key="rStock.stockId">
+          <!-- :data-last-selected="store.ch === rStock.stockId" -->
           <div
             class="stock-title"
             tabindex="0"
             @click="chooseStock(rStock)"
             @keydown.enter="chooseStock(rStock)"
           >
-            <img
-              class="stock-icon"
-              :src="getIconURL(rStock.type)"
-              :alt="rStock.type"
-            />
-            <b class="text--accent" style="margin-left: 5px">
-              {{ rStock.name }}</b
-            >
+            <img class="stock-icon" :src="getIconURL(rStock.type)" :alt="rStock.type" />
+            <b class="text--accent" style="margin-left: 5px"> {{ rStock.name }}</b>
             <div>{{ rStock.number }}</div>
           </div>
 
@@ -111,24 +94,19 @@
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
+import { defineComponent } from 'vue';
 
-import { useStore } from "../../store";
-import imageMixin from "../../mixins/imageMixin";
-import stockMixin from "../../mixins/stockMixin";
+import { useStore } from '../../store';
+import imageMixin from '../../mixins/imageMixin';
+import stockMixin from '../../mixins/stockMixin';
 
-import { IReadyStockItem } from "../../types";
-import http from "../../http";
-
-interface ResponseJSONData {
-  [key: string]: string;
-}
+import { IRealComposition } from '../../types';
 
 function getVehicleType(stockType: string) {
-  if (/^E/.test(stockType)) return "loco-e";
-  if (/^S/.test(stockType)) return "loco-s";
+  if (/^E/.test(stockType)) return 'loco-e';
+  if (/^S/.test(stockType)) return 'loco-s';
 
-  return "car-passenger";
+  return 'car-passenger';
 }
 
 export default defineComponent({
@@ -136,55 +114,51 @@ export default defineComponent({
 
   data: () => ({
     store: useStore(),
-    responseStatus: "loading",
+    responseStatus: 'loading',
     isMobile:
-      "ontouchstart" in document.documentElement &&
-      navigator.userAgent.match(/Mobi/)
+      'ontouchstart' in document.documentElement && navigator.userAgent.match(/Mobi/)
         ? true
         : false,
     observer: null as IntersectionObserver | null,
-    searchedReadyStockName: "",
-    searchedReadyStockString: "",
+    searchedReadyStockName: '',
+    searchedReadyStockString: '',
     visibleIndexesTo: 0,
     lastSelectedStockId: null as string | null,
     scrollTop: 0,
   }),
 
-  async mounted() {
+  mounted() {
     this.mountObserver();
-    this.fetchStockListData();
   },
 
   activated() {
-    (this.$refs["focus"] as HTMLElement).focus();
+    (this.$refs['focus'] as HTMLElement).focus();
 
-    (this.$refs["list"] as HTMLElement).scrollTo({
+    (this.$refs['list'] as HTMLElement).scrollTo({
       top: this.scrollTop,
-      behavior: "auto",
+      behavior: 'auto',
     });
   },
 
   computed: {
-    computedReadyStockList() {
-      if (this.searchedReadyStockName == null) return this.store.readyStockList;
-
-      return this.store.readyStockList
+    computedReadyStockList(): IRealComposition[] {
+      return this.store.realCompositionList
         .filter(
-          (rs) =>
-            rs.stockId
+          (rc) =>
+            rc.stockId
               .toLocaleLowerCase()
               .includes(this.searchedReadyStockName.toLocaleLowerCase()) &&
-            rs.stockString
+            rc.stockString
               .toLocaleLowerCase()
-              .includes(this.searchedReadyStockString.toLocaleLowerCase()),
+              .includes(this.searchedReadyStockString.toLocaleLowerCase())
         )
         .filter((_, i) => i <= this.visibleIndexesTo);
     },
 
     computedAvailableStockTypes() {
-      return this.store.readyStockList
+      return this.store.realCompositionList
         .reduce((acc, rs) => {
-          rs.stockString.split(";").forEach((s) => {
+          rs.stockString.split(';').forEach((s) => {
             if (!acc.includes(s)) acc.push(s);
           });
 
@@ -198,7 +172,7 @@ export default defineComponent({
     computedReadyStockList(curr, prev) {
       if (curr.length < prev.length) {
         this.visibleIndexesTo = 20;
-        (this.$refs["list"] as HTMLElement).scrollTo({
+        (this.$refs['list'] as HTMLElement).scrollTo({
           top: 0,
         });
       }
@@ -206,41 +180,12 @@ export default defineComponent({
   },
 
   methods: {
-    async fetchStockListData() {
-      const readyStockJSONData = (
-        await http.get<ResponseJSONData>("td2/data/readyStock.json")
-      ).data;
-
-      if (!readyStockJSONData) {
-        this.responseStatus = "error";
-        return;
-      }
-
-      for (let stockKey in readyStockJSONData) {
-        const [type, number, ...name] = stockKey.split(" ");
-
-        const obj = {
-          number: number.replace(/_/g, "/"),
-          name: name.join(" "),
-          stockString: readyStockJSONData[stockKey],
-          type,
-        };
-
-        this.store.readyStockList.push({
-          ...obj,
-          stockId: `${obj.type} ${obj.number} ${obj.name}`,
-        });
-      }
-
-      this.responseStatus = "loaded";
-    },
-
     mountObserver() {
       this.observer = new IntersectionObserver((entries) => {
         if (entries[0].intersectionRatio > 0) this.visibleIndexesTo += 20;
       });
 
-      this.observer.observe(this.$refs["bottom"] as HTMLElement);
+      this.observer.observe(this.$refs['bottom'] as HTMLElement);
     },
 
     getImageUrl(name: string) {
@@ -248,11 +193,11 @@ export default defineComponent({
     },
 
     resetStockFilters() {
-      this.searchedReadyStockName = "";
-      this.searchedReadyStockString = "";
+      this.searchedReadyStockName = '';
+      this.searchedReadyStockString = '';
     },
 
-    chooseStock(stockItem: IReadyStockItem) {
+    chooseStock(stockItem: IRealComposition) {
       this.loadStockFromString(stockItem.stockString);
       this.lastSelectedStockId = stockItem.stockId;
       this.store.isRealStockListCardOpen = false;
@@ -261,7 +206,7 @@ export default defineComponent({
     onStockItemError(e: Event, stockType: string) {
       const imageEl = e.target as HTMLImageElement;
       imageEl.src = `images/${getVehicleType(stockType)}-unknown.png`;
-      imageEl.style.opacity = "1";
+      imageEl.style.opacity = '1';
     },
 
     onListScroll(e: Event) {
@@ -275,7 +220,7 @@ export default defineComponent({
 </script>
 
 <style lang="scss" scoped>
-@import "../../styles/global.scss";
+@import '../../styles/global.scss';
 
 .exit-btn {
   font-size: 1.2em;
@@ -361,7 +306,7 @@ ul {
     gap: 1rem;
     padding: 0.1em;
 
-    &[data-last-selected="true"] .stock-title {
+    &[data-last-selected='true'] .stock-title {
       border: 1px solid $accentColor;
     }
 
diff --git a/src/components/common/Checkbox.vue b/src/components/common/Checkbox.vue
index f35bc44..a88dff8 100644
--- a/src/components/common/Checkbox.vue
+++ b/src/components/common/Checkbox.vue
@@ -27,7 +27,7 @@ div {
   user-select: none;
 
   &::before {
-    content: "\2716";
+    content: '\2716';
     margin-right: 0.5em;
     color: #aaa;
   }
@@ -51,7 +51,7 @@ input {
 
     &::before {
       color: palegreen;
-      content: "\2714";
+      content: '\2714';
     }
   }
 }
diff --git a/src/components/sections/InputsSection.vue b/src/components/sections/InputsSection.vue
index 446997a..bff3fb8 100644
--- a/src/components/sections/InputsSection.vue
+++ b/src/components/sections/InputsSection.vue
@@ -27,7 +27,9 @@
           <option :value="null" disabled>
             {{ $t('inputs.input-vehicle') }}
           </option>
-          <option v-for="loco in locoOptions" :value="loco" :key="loco.type">{{ loco.type }}<b v-if="loco.isSponsorsOnly">*</b></option>
+          <option v-for="loco in locoOptions" :value="loco" :key="loco.type">
+            {{ loco.type }}<b v-if="loco.isSponsorsOnly">*</b>
+          </option>
         </select>
       </div>
 
@@ -56,7 +58,9 @@
             {{ $t('inputs.input-carwagon') }}
           </option>
 
-          <option v-for="car in carOptions" :value="car" :key="car.type">{{ car.type }}<b v-if="car.isSponsorsOnly">*</b></option>
+          <option v-for="car in carOptions" :value="car" :key="car.type">
+            {{ car.type }}<b v-if="car.isSponsorsOnly">*</b>
+          </option>
         </select>
       </div>
 
@@ -65,7 +69,9 @@
         <select
           id="cargo-select"
           :disabled="
-            (store.chosenCar && !store.chosenCar.loadable) || (store.chosenCar && store.chosenCar.useType == 'car-passenger') || !store.chosenCar
+            (store.chosenCar && !store.chosenCar.loadable) ||
+            (store.chosenCar && store.chosenCar.useType == 'car-passenger') ||
+            !store.chosenCar
           "
           data-select="cargo"
           data-ignore-outside="1"
@@ -90,7 +96,12 @@
         <button class="btn" @click="addVehicle(store.chosenVehicle, store.chosenCargo)">
           {{ $t('inputs.action-add') }}
         </button>
-        <button class="btn" @click="switchVehicles" :disabled="store.chosenStockListIndex == -1" :data-disabled="store.chosenStockListIndex == -1">
+        <button
+          class="btn"
+          @click="switchVehicles"
+          :disabled="store.chosenStockListIndex == -1"
+          :data-disabled="store.chosenStockListIndex == -1"
+        >
           {{ $t('inputs.action-swap') }}
           <b class="text--accent">
             {{ store.chosenStockListIndex == -1 ? '' : `${store.chosenStockListIndex + 1}.` }}
@@ -173,7 +184,8 @@ export default defineComponent({
     addOrSwitchVehicle() {
       if (!this.store.chosenVehicle) return;
 
-      if (this.store.chosenStockListIndex == -1) this.addVehicle(this.store.chosenVehicle, this.store.chosenCargo);
+      if (this.store.chosenStockListIndex == -1)
+        this.addVehicle(this.store.chosenVehicle, this.store.chosenCargo);
       else this.switchVehicles();
     },
 
@@ -216,7 +228,10 @@ export default defineComponent({
 
         this.store.chosenVehicle = type == 'loco' ? this.store.chosenLoco : this.store.chosenCar;
 
-        this.store.chosenCargo = this.store.chosenCar?.cargoTypes.find((cargo) => cargo.id == this.store.chosenCargo?.id) || null;
+        this.store.chosenCargo =
+          this.store.chosenCar?.cargoTypes.find(
+            (cargo) => cargo.id == this.store.chosenCargo?.id
+          ) || null;
       });
     },
   },
diff --git a/src/components/sections/LogoSection.vue b/src/components/sections/LogoSection.vue
index 48744cb..e6e7d18 100644
--- a/src/components/sections/LogoSection.vue
+++ b/src/components/sections/LogoSection.vue
@@ -1,10 +1,6 @@
 <template>
   <section class="logo-section">
-    <img
-      :src="`/logo-${$i18n.locale}.svg`"
-      alt="logo pojazdownik"
-      @click="navigate"
-    />
+    <img :src="`/logo-${$i18n.locale}.svg`" alt="logo pojazdownik" @click="navigate" />
 
     <div class="actions">
       <button
@@ -26,31 +22,31 @@ export default {
     return {
       localeActions: [
         {
-          name: "POLSKI",
-          locale: "pl",
+          name: 'POLSKI',
+          locale: 'pl',
         },
         {
-          name: "ENGLISH",
-          locale: "en",
+          name: 'ENGLISH',
+          locale: 'en',
         },
       ],
     };
   },
   methods: {
     navigate() {
-      window.location.pathname = "";
+      window.location.pathname = '';
     },
 
     chooseLocale(locale: string) {
       this.$i18n.locale = locale;
-      window.localStorage.setItem("locale", locale);
+      window.localStorage.setItem('locale', locale);
     },
   },
 };
 </script>
 
 <style lang="scss" scoped>
-@import "../../styles/global.scss";
+@import '../../styles/global.scss';
 
 .logo-section {
   grid-row: 1;
@@ -69,7 +65,7 @@ export default {
   display: flex;
   gap: 0.5em;
 
-  button[data-selected="true"] {
+  button[data-selected='true'] {
     font-weight: bold;
     color: $accentColor;
     text-decoration: underline;
diff --git a/src/components/sections/StockSection.vue b/src/components/sections/StockSection.vue
index 0aa8b84..aa03920 100644
--- a/src/components/sections/StockSection.vue
+++ b/src/components/sections/StockSection.vue
@@ -23,12 +23,12 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted, ref } from "vue";
-import { useStore } from "../../store";
-import StockListTab from "../tabs/StockListTab.vue";
-import StockGeneratorTab from "../tabs/StockGeneratorTab.vue";
-import NumberGeneratorTab from "../tabs/NumberGeneratorTab.vue";
-import WikiListTab from "../tabs/WikiListTab.vue";
+import { computed, onMounted, ref } from 'vue';
+import { useStore } from '../../store';
+import StockListTab from '../tabs/StockListTab.vue';
+import StockGeneratorTab from '../tabs/StockGeneratorTab.vue';
+import NumberGeneratorTab from '../tabs/NumberGeneratorTab.vue';
+import WikiListTab from '../tabs/WikiListTab.vue';
 
 const sectionButtonRefs = ref([]);
 
@@ -36,36 +36,36 @@ const store = useStore();
 type SectionMode = typeof store.stockSectionMode;
 
 const sectionModes: SectionMode[] = [
-  "stock-list",
-  "wiki-list",
-  "number-generator",
-  "stock-generator",
+  'stock-list',
+  'wiki-list',
+  'number-generator',
+  'stock-generator',
 ];
 
 onMounted(() => {
-  window.addEventListener("keydown", (e) => {
+  window.addEventListener('keydown', (e) => {
     if (e.target instanceof HTMLInputElement) return;
 
     if (/[1234]/.test(e.key)) {
       const keyNum = Number(e.key);
       store.stockSectionMode = sectionModes[keyNum - 1];
-      (sectionButtonRefs.value[keyNum - 1] as HTMLButtonElement).focus();
+      (sectionButtonRefs.value[keyNum - 1] as HTMLButtonElement)?.focus();
     }
   });
 });
 
 const chosenSectionComponent = computed(() => {
   switch (store.stockSectionMode) {
-    case "stock-list":
+    case 'stock-list':
       return StockListTab;
 
-    case "wiki-list":
+    case 'wiki-list':
       return WikiListTab;
 
-    case "stock-generator":
+    case 'stock-generator':
       return StockGeneratorTab;
 
-    case "number-generator":
+    case 'number-generator':
       return NumberGeneratorTab;
 
     default:
@@ -79,7 +79,7 @@ function chooseSection(sectionId: SectionMode) {
 </script>
 
 <style lang="scss">
-@import "../../styles/global.scss";
+@import '../../styles/global.scss';
 
 // Tab change animation
 .tab-change {
@@ -121,14 +121,14 @@ function chooseSection(sectionId: SectionMode) {
       left: 50%;
       transform: translateX(-50%);
 
-      content: "";
+      content: '';
       width: 0;
       height: 2px;
       transition: all 100ms;
       background-color: $accentColor;
     }
 
-    &[data-selected="true"]::after {
+    &[data-selected='true']::after {
       width: 100%;
     }
   }
diff --git a/src/components/sections/TrainImageSection.vue b/src/components/sections/TrainImageSection.vue
index 3eccd5b..5843d45 100644
--- a/src/components/sections/TrainImageSection.vue
+++ b/src/components/sections/TrainImageSection.vue
@@ -3,7 +3,11 @@
     <div class="train-image__content" :class="{ sponsor: store.chosenVehicle?.isSponsorsOnly }">
       <img
         tabindex="0"
-        :src="store.chosenVehicle ? getThumbnailURL(store.chosenVehicle.type, 'small') : '/images/placeholder.jpg'"
+        :src="
+          store.chosenVehicle
+            ? getThumbnailURL(store.chosenVehicle.type, 'small')
+            : '/images/placeholder.jpg'
+        "
         @click="onImageClick"
         @keydown.enter="onImageClick"
         @error="onImageError"
@@ -14,13 +18,22 @@
     <div class="train-image__info" v-if="store.chosenVehicle">
       <b class="text--accent">{{ store.chosenVehicle.type }}</b> &bull;
       <b style="color: #ccc">
-        {{ $t(`preview.${isLocomotive(store.chosenVehicle) ? store.chosenVehicle.power : store.chosenVehicle.useType}`) }}
+        {{
+          $t(
+            `preview.${isLocomotive(store.chosenVehicle) ? store.chosenVehicle.power : store.chosenVehicle.useType}`
+          )
+        }}
       </b>
 
       <div style="color: #ccc">
-        <div>{{ store.chosenVehicle.length }}m | {{ (store.chosenVehicle.weight / 1000).toFixed(1) }}t | {{ store.chosenVehicle.maxSpeed }} km/h</div>
+        <div>
+          {{ store.chosenVehicle.length }}m | {{ (store.chosenVehicle.weight / 1000).toFixed(1) }}t
+          | {{ store.chosenVehicle.maxSpeed }} km/h
+        </div>
 
-        <div v-if="isLocomotive(store.chosenVehicle)">{{ $t('preview.cabin') }} {{ store.chosenVehicle.cabinType }}</div>
+        <div v-if="isLocomotive(store.chosenVehicle)">
+          {{ $t('preview.cabin') }} {{ store.chosenVehicle.cabinType }}
+        </div>
 
         <div v-else>
           {{
@@ -32,7 +45,9 @@
 
         <b style="color: salmon" v-if="store.chosenVehicle.isSponsorsOnly">{{
           $t('preview.sponsor-only', [
-            new Date(store.chosenVehicle.sponsorsOnlyTimestamp).toLocaleDateString($i18n.locale == 'pl' ? 'pl-PL' : 'en-GB'),
+            new Date(store.chosenVehicle.sponsorsOnlyTimestamp).toLocaleDateString(
+              $i18n.locale == 'pl' ? 'pl-PL' : 'en-GB'
+            ),
           ])
         }}</b>
       </div>
@@ -46,7 +61,7 @@
 import { computed, defineComponent } from 'vue';
 import { useStore } from '../../store';
 import { isLocomotive } from '../../utils/vehicleUtils';
-import { ILocomotive, Vehicle } from '../../types';
+import { ILocomotive, IVehicle } from '../../types';
 import imageMixin from '../../mixins/imageMixin';
 
 export default defineComponent({
@@ -68,7 +83,7 @@ export default defineComponent({
   },
 
   watch: {
-    chosenVehicle(vehicle: Vehicle, prevVehicle: Vehicle) {
+    chosenVehicle(vehicle: IVehicle, prevVehicle: IVehicle) {
       if (vehicle && vehicle.type != prevVehicle?.type) {
         this.store.imageLoading = true;
       }
@@ -87,7 +102,7 @@ export default defineComponent({
       el.src = '/images/placeholder.jpg';
     },
 
-    isLocomotive(vehicle: Vehicle): vehicle is ILocomotive {
+    isLocomotive(vehicle: IVehicle): vehicle is ILocomotive {
       return isLocomotive(vehicle);
     },
 
diff --git a/src/components/tabs/NumberGeneratorTab.vue b/src/components/tabs/NumberGeneratorTab.vue
index 8c0c7b5..d6a0250 100644
--- a/src/components/tabs/NumberGeneratorTab.vue
+++ b/src/components/tabs/NumberGeneratorTab.vue
@@ -1,20 +1,16 @@
 <template>
   <div class="number-generator tab">
     <div class="tab_header">
-      <h2>{{ $t("numgen.title") }}</h2>
-      <h3>{{ $t("numgen.subtitle") }}</h3>
+      <h2>{{ $t('numgen.title') }}</h2>
+      <h3>{{ $t('numgen.subtitle') }}</h3>
     </div>
 
     <div class="tab_content">
       <div class="category-select">
-        <label for="category"> {{ $t("numgen.train-category") }}</label>
-        <select
-          id="category"
-          v-model="chosenCategory"
-          @change="randomizeTrainNumber()"
-        >
+        <label for="category"> {{ $t('numgen.train-category') }}</label>
+        <select id="category" v-model="chosenCategory" @change="randomizeTrainNumber()">
           <option :value="null" disabled>
-            {{ $t("numgen.train-category") }}
+            {{ $t('numgen.train-category') }}
           </option>
           <option
             v-for="(_, category) in genData.categoriesRules"
@@ -28,40 +24,24 @@
 
       <div class="regions-select">
         <div>
-          <label for="begin-region"> {{ $t("numgen.start-region") }}</label>
-          <select
-            id="begin-region"
-            v-model="beginRegionName"
-            @change="randomizeTrainNumber()"
-          >
+          <label for="begin-region"> {{ $t('numgen.start-region') }}</label>
+          <select id="begin-region" v-model="beginRegionName" @change="randomizeTrainNumber()">
             <option :value="null" disabled>
-              {{ $t("numgen.start-region") }}
+              {{ $t('numgen.start-region') }}
             </option>
-            <option
-              v-for="(_, name) in genData.regionNumbers"
-              :key="name"
-              :value="name"
-            >
+            <option v-for="(_, name) in genData.regionNumbers" :key="name" :value="name">
               {{ name }}
             </option>
           </select>
         </div>
 
         <div>
-          <label for="end-region"> {{ $t("numgen.end-region") }}</label>
-          <select
-            id="end-region"
-            v-model="endRegionName"
-            @change="randomizeTrainNumber()"
-          >
+          <label for="end-region"> {{ $t('numgen.end-region') }}</label>
+          <select id="end-region" v-model="endRegionName" @change="randomizeTrainNumber()">
             <option :value="null" disabled>
-              {{ $t("numgen.end-region") }}
+              {{ $t('numgen.end-region') }}
             </option>
-            <option
-              v-for="(_, name) in genData.regionNumbers"
-              :key="name"
-              :value="name"
-            >
+            <option v-for="(_, name) in genData.regionNumbers" :key="name" :value="name">
               {{ name }}
             </option>
           </select>
@@ -70,71 +50,58 @@
 
       <div class="generated-number" @click="copyNumber">
         <span v-if="trainNumber">
-          {{ $t("numgen.number-info") }}
+          {{ $t('numgen.number-info') }}
           <b class="text--accent">{{ trainNumber }}</b>
         </span>
-        <span v-else>{{ $t("numgen.warning") }}</span>
+        <span v-else>{{ $t('numgen.warning') }}</span>
       </div>
 
-      <div
-        class="category-rules"
-        v-if="chosenCategory && categoryRules && trainNumber"
-      >
+      <div class="category-rules" v-if="chosenCategory && categoryRules && trainNumber">
         <!-- First & second digit (the same regions)  -->
-        <div
-          v-if="
-            beginRegionName && endRegionName && beginRegionName == endRegionName
-          "
-        >
-          <b>{{ $t("numgen.rules.two-first-digits") }}</b>
-          {{ $t("numgen.rules.from-pool") }}
-          <b class="text--accent">{{
-            genData.sameRegions[beginRegionName].join(", ")
-          }}</b>
-          {{ $t("numgen.rules.for-region") }} {{ beginRegionName }}
+        <div v-if="beginRegionName && endRegionName && beginRegionName == endRegionName">
+          <b>{{ $t('numgen.rules.two-first-digits') }}</b>
+          {{ $t('numgen.rules.from-pool') }}
+          <b class="text--accent">{{ genData.sameRegions[beginRegionName].join(', ') }}</b>
+          {{ $t('numgen.rules.for-region') }} {{ beginRegionName }}
         </div>
 
         <!-- First & second digit (different regions)  -->
         <div v-else>
           <div>
             <b>
-              {{ $t("numgen.rules.first-digit") }}
+              {{ $t('numgen.rules.first-digit') }}
               <span class="text--accent">{{ trainNumber[0] }}</span>
             </b>
-            {{ $t("numgen.rules.for-region-begin") }} {{ beginRegionName }}
+            {{ $t('numgen.rules.for-region-begin') }} {{ beginRegionName }}
           </div>
 
           <div>
             <b>
-              {{ $t("numgen.rules.second-digit") }}
+              {{ $t('numgen.rules.second-digit') }}
               <span class="text--accent">{{ trainNumber[1] }} </span>
             </b>
-            {{ $t("numgen.rules.for-region-end") }} {{ endRegionName }}
+            {{ $t('numgen.rules.for-region-end') }} {{ endRegionName }}
           </div>
         </div>
 
         <!-- Third digit (non-passenger only) -->
         <div v-if="categoryRules[0] != null">
           <b>
-            {{ $t("numgen.rules.third-digit") }}
+            {{ $t('numgen.rules.third-digit') }}
             <span class="text--accent">{{ categoryRules[0] }}</span>
           </b>
-          {{ $t("numgen.rules.for-category") }} {{ chosenCategory }}
+          {{ $t('numgen.rules.for-category') }} {{ chosenCategory }}
         </div>
 
         <!-- Last digits  -->
         <div>
           <b>
             {{
-              $t(
-                `numgen.rules.${categoryRules[1]?.length == 3 ? "three" : "two"}-last-digits`,
-              )
+              $t(`numgen.rules.${categoryRules[1]?.length == 3 ? 'three' : 'two'}-last-digits`)
             }}</b
           >
-          {{ $t("numgen.rules.from-range") }}
-          <b class="text--accent"
-            >{{ categoryRules[1] }}-{{ categoryRules[2] }}</b
-          >
+          {{ $t('numgen.rules.from-range') }}
+          <b class="text--accent">{{ categoryRules[1] }}-{{ categoryRules[2] }}</b>
         </div>
       </div>
 
@@ -142,7 +109,7 @@
 
       <div class="tab_links">
         <a :href="$t('numgen.td2-wiki-link')" target="_blank">
-          {{ $t("numgen.td2-wiki") }}
+          {{ $t('numgen.td2-wiki') }}
         </a>
       </div>
 
@@ -150,15 +117,15 @@
 
       <div class="tab_actions">
         <button class="btn" @click="randomizeTrainNumber(true)">
-          {{ $t("numgen.action-random-region") }}
+          {{ $t('numgen.action-random-region') }}
         </button>
 
         <button class="btn" @click="randomizeCategory">
-          {{ $t("numgen.action-random-category") }}
+          {{ $t('numgen.action-random-category') }}
         </button>
 
         <button class="btn" @click="randomizeTrainNumber(false)">
-          {{ $t("numgen.action-random-number") }}
+          {{ $t('numgen.action-random-number') }}
         </button>
       </div>
     </div>
@@ -166,11 +133,11 @@
 </template>
 
 <script setup lang="ts">
-import { Ref, ref } from "vue";
-import { useI18n } from "vue-i18n";
+import { Ref, ref } from 'vue';
+import { useI18n } from 'vue-i18n';
 
-import genData from "../../constants/numberGeneratorData.json";
-import { computed } from "vue";
+import genData from '../../constants/numberGeneratorData.json';
+import { computed } from 'vue';
 
 const i18n = useI18n();
 type RegionName = keyof typeof genData.regionNumbers;
@@ -185,7 +152,7 @@ const trainNumber = ref(null) as Ref<string | null>;
 const copyNumber = () => {
   if (trainNumber.value) {
     navigator.clipboard.writeText(trainNumber.value);
-    alert(i18n.t("numgen.alert"));
+    alert(i18n.t('numgen.alert'));
   }
 };
 
@@ -208,16 +175,12 @@ const randomizeTrainNumber = (randomizeRegions = false) => {
   const regionKeys = Object.keys(genData.regionNumbers);
 
   if (beginRegionName.value == null || randomizeRegions)
-    beginRegionName.value = regionKeys[
-      (regionKeys.length * Math.random()) << 0
-    ] as RegionName;
+    beginRegionName.value = regionKeys[(regionKeys.length * Math.random()) << 0] as RegionName;
 
   if (endRegionName.value == null || randomizeRegions)
-    endRegionName.value = regionKeys[
-      (regionKeys.length * Math.random()) << 0
-    ] as RegionName;
+    endRegionName.value = regionKeys[(regionKeys.length * Math.random()) << 0] as RegionName;
 
-  let number = "";
+  let number = '';
 
   // Two first numbers (begin & end regions)
   if (beginRegionName.value == endRegionName.value) {
@@ -239,22 +202,20 @@ const randomizeTrainNumber = (randomizeRegions = false) => {
   }
 
   // Choose default category if it's not chosen
-  if (chosenCategory.value == null) chosenCategory.value = "EI";
+  if (chosenCategory.value == null) chosenCategory.value = 'EI';
 
   // Get category rules
   const [thirdNumber, minRange, maxRange] = categoryRules.value!;
 
   // Third number
-  number += thirdNumber ?? "";
+  number += thirdNumber ?? '';
 
   // Remaining numbers
   const rangeNums = minRange!.length;
   const randRange = Math.floor(
-    Math.random() * (Number(maxRange) - Number(minRange)) + Number(minRange),
+    Math.random() * (Number(maxRange) - Number(minRange)) + Number(minRange)
   ).toString();
-  const leadingZeros = new Array(Math.abs(randRange.length - rangeNums))
-    .fill("0")
-    .join("");
+  const leadingZeros = new Array(Math.abs(randRange.length - rangeNums)).fill('0').join('');
 
   number += `${leadingZeros}${randRange}`;
 
@@ -263,8 +224,8 @@ const randomizeTrainNumber = (randomizeRegions = false) => {
 </script>
 
 <style lang="scss" scoped>
-@import "../../styles/tab.scss";
-@import "../../styles/global.scss";
+@import '../../styles/tab.scss';
+@import '../../styles/global.scss';
 
 label {
   display: block;
diff --git a/src/components/tabs/StockGeneratorTab.vue b/src/components/tabs/StockGeneratorTab.vue
index 65bfb9d..d149ce8 100644
--- a/src/components/tabs/StockGeneratorTab.vue
+++ b/src/components/tabs/StockGeneratorTab.vue
@@ -85,15 +85,27 @@
       <hr />
 
       <div class="tab_actions">
-        <button class="btn" :data-disabled="computedChosenCarTypes.size == 0" @click="generateStock()">
+        <button
+          class="btn"
+          :data-disabled="computedChosenCarTypes.size == 0"
+          @click="generateStock()"
+        >
           {{ $t('stockgen.action-generate') }}
         </button>
 
-        <button class="btn" :data-disabled="computedChosenCarTypes.size == 0" @click="generateStock(true)">
+        <button
+          class="btn"
+          :data-disabled="computedChosenCarTypes.size == 0"
+          @click="generateStock(true)"
+        >
           {{ $t('stockgen.action-generate-empty') }}
         </button>
 
-        <button class="btn" :data-disabled="computedChosenCarTypes.size == 0" @click="resetChosenCargo">
+        <button
+          class="btn"
+          :data-disabled="computedChosenCarTypes.size == 0"
+          @click="resetChosenCargo"
+        >
           {{ $t('stockgen.action-reset') }}
         </button>
       </div>
@@ -138,9 +150,9 @@ export default defineComponent({
     },
 
     computedCargoData() {
-      if (!this.store.stockData?.generator.cargo) return [];
+      if (!this.store.vehiclesAPIData?.generator.cargo) return [];
 
-      const cargoGeneratorData = this.store.stockData.generator.cargo;
+      const cargoGeneratorData = this.store.vehiclesAPIData.generator.cargo;
 
       return Object.keys(cargoGeneratorData)
         .sort((v1, v2) => this.$t(`cargo.${v1}`).localeCompare(this.$t(`cargo.${v2}`)))
@@ -175,14 +187,16 @@ export default defineComponent({
       if (!this.isCarGroupingEnabled) return false;
 
       stockList.sort((s1, s2) => {
-        return (s1.constructionType + s1.cargo?.id).localeCompare(s2.constructionType + s2.cargo?.id);
+        return (s1.constructionType + s1.cargo?.id).localeCompare(
+          s2.constructionType + s2.cargo?.id
+        );
       });
     },
 
     generateStock(empty = false) {
       const generatedChosenStockList = this.chosenCargoTypes.reduce(
         (acc, type) => {
-          this.store.stockData?.generator.cargo[type]
+          this.store.vehiclesAPIData?.generator.cargo[type]
             .filter((c) => !this.excludedCarTypes.includes(c.split(':')[0]))
             .forEach((c) => {
               const [type, cargoType] = c.split(':');
@@ -192,11 +206,14 @@ export default defineComponent({
 
               if (!cargoType || empty) cargoObjs.push(undefined);
               else if (cargoType == 'all') cargoObjs.push(...carWagonObjs[0]!.cargoTypes);
-              else cargoObjs.push(carWagonObjs[0]?.cargoTypes.find((cargo) => cargo.id == cargoType));
+              else
+                cargoObjs.push(carWagonObjs[0]?.cargoTypes.find((cargo) => cargo.id == cargoType));
 
               carWagonObjs.forEach((cw) => {
                 cargoObjs.forEach((cargoObj) => {
-                  const chosenStock = acc.find((a) => a.constructionType.includes(cw.constructionType));
+                  const chosenStock = acc.find((a) =>
+                    a.constructionType.includes(cw.constructionType)
+                  );
 
                   if (!chosenStock)
                     acc.push({
@@ -225,12 +242,17 @@ export default defineComponent({
         this.store.stockList.splice(this.store.stockList[0]?.isLoco ? 1 : 0);
 
         let carCount = 0;
-        const maxWeight = this.store.acceptableWeight > 0 ? Math.min(this.store.acceptableWeight, this.maxTons * 1000) : this.maxTons * 1000;
+        const maxWeight =
+          this.store.acceptableWeight > 0
+            ? Math.min(this.store.acceptableWeight, this.maxTons * 1000)
+            : this.maxTons * 1000;
 
         // eslint-disable-next-line no-constant-condition
         while (true) {
-          const randomStockType = generatedChosenStockList[~~(Math.random() * generatedChosenStockList.length)];
-          const { carWagon, cargo } = randomStockType.carPool[~~(Math.random() * randomStockType.carPool.length)];
+          const randomStockType =
+            generatedChosenStockList[~~(Math.random() * generatedChosenStockList.length)];
+          const { carWagon, cargo } =
+            randomStockType.carPool[~~(Math.random() * randomStockType.carPool.length)];
 
           if (
             this.store.totalWeight + (carWagon.weight + (cargo?.weight ?? 0)) > maxWeight ||
diff --git a/src/components/tabs/StockListTab.vue b/src/components/tabs/StockListTab.vue
index d180c36..7b07b41 100644
--- a/src/components/tabs/StockListTab.vue
+++ b/src/components/tabs/StockListTab.vue
@@ -11,60 +11,96 @@
         {{ $t('stocklist.action-upload') }}
       </button>
 
-      <button class="btn btn--image" :data-disabled="stockIsEmpty" :disabled="stockIsEmpty" @click="downloadStock">
+      <button
+        class="btn btn--image"
+        :data-disabled="stockIsEmpty"
+        :disabled="stockIsEmpty"
+        @click="downloadStock"
+      >
         <img src="/images/icon-download.svg" alt="download icon" />
         {{ $t('stocklist.action-download') }}
       </button>
 
-      <button class="btn btn--image" :data-disabled="stockIsEmpty" :disabled="stockIsEmpty" @click="copyToClipboard">
+      <button
+        class="btn btn--image"
+        :data-disabled="stockIsEmpty"
+        :disabled="stockIsEmpty"
+        @click="copyToClipboard"
+      >
         <img src="/images/icon-copy.svg" alt="copy icon" />
         {{ $t('stocklist.action-copy') }}
       </button>
 
-      <button class="btn btn--image" :data-disabled="stockIsEmpty" :disabled="stockIsEmpty" @click="resetStock">
+      <button
+        class="btn btn--image"
+        :data-disabled="stockIsEmpty"
+        :disabled="stockIsEmpty"
+        @click="resetStock"
+      >
         <img src="/images/icon-reset.svg" alt="reset icon" />
         {{ $t('stocklist.action-reset') }}
       </button>
 
-      <button class="btn btn--image" :data-disabled="stockIsEmpty" :disabled="stockIsEmpty" @click="shuffleCars">
+      <button
+        class="btn btn--image"
+        :data-disabled="stockIsEmpty"
+        :disabled="stockIsEmpty"
+        @click="shuffleCars"
+      >
         <img src="/images/icon-shuffle.svg" alt="shuffle icon" />
         {{ $t('stocklist.action-shuffle') }}
       </button>
     </div>
 
     <div class="stock_controls" :data-disabled="store.chosenStockListIndex == -1">
-      <button class="btn btn--image" :tabindex="store.chosenStockListIndex == -1 ? -1 : 0" @click="moveUpStock(store.chosenStockListIndex)">
+      <button
+        class="btn btn--image"
+        :tabindex="store.chosenStockListIndex == -1 ? -1 : 0"
+        @click="moveUpStock(store.chosenStockListIndex)"
+      >
         <img :src="getIconURL('higher')" alt="move up vehicle" />
         {{ $t('stocklist.action-move-up') }}
       </button>
 
-      <button class="btn btn--image" :tabindex="store.chosenStockListIndex == -1 ? -1 : 0" @click="moveDownStock(store.chosenStockListIndex)">
+      <button
+        class="btn btn--image"
+        :tabindex="store.chosenStockListIndex == -1 ? -1 : 0"
+        @click="moveDownStock(store.chosenStockListIndex)"
+      >
         <img :src="getIconURL('lower')" alt="move down vehicle" />
         {{ $t('stocklist.action-move-down') }}
       </button>
 
-      <button class="btn btn--image" :tabindex="store.chosenStockListIndex == -1 ? -1 : 0" @click="removeStock(store.chosenStockListIndex)">
+      <button
+        class="btn btn--image"
+        :tabindex="store.chosenStockListIndex == -1 ? -1 : 0"
+        @click="removeStock(store.chosenStockListIndex)"
+      >
         <img :src="getIconURL('remove')" alt="remove vehicle" />
         {{ $t('stocklist.action-remove') }}
       </button>
     </div>
 
     <div class="stock_specs">
-      <b class="real-stock-info" v-if="store.chosenRealStock">
+      <b class="real-stock-info" v-if="chosenRealComposition">
         <span class="text--accent">
-          <img :src="getIconURL(store.chosenRealStock.type)" :alt="store.chosenRealStock.type" />
-          {{ store.chosenRealStock.number }} {{ store.chosenRealStock.name }}
+          <img :src="getIconURL(chosenRealComposition.type)" :alt="chosenRealComposition.type" />
+          {{ chosenRealComposition.number }} {{ chosenRealComposition.name }}
         </span>
         |
       </b>
 
       <span>
         {{ $t('stocklist.mass') }}
-        <span class="text--accent">{{ (store.totalWeight / 1000).toFixed(1) }}t</span> ({{ $t('stocklist.mass-accepted') }}:
-        <span class="text--accent">{{ store.acceptableWeight ? `${~~(store.acceptableWeight / 1000)}t` : '-' }}</span
+        <span class="text--accent">{{ (store.totalWeight / 1000).toFixed(1) }}t</span>
+        ({{ $t('stocklist.mass-accepted') }}:
+        <span class="text--accent">{{
+          store.acceptableWeight ? `${~~(store.acceptableWeight / 1000)}t` : '-'
+        }}</span
         >) - {{ $t('stocklist.length') }}:
         <span class="text--accent">{{ store.totalLength }}m</span>
-        - {{ $t('stocklist.vmax') }}:
+        - {{ $t('stocklist.vmax') }}
+        <span tabindex="0" :data-tooltip="$t('stocklist.disclaimer')">(?)</span>:
         <span class="text--accent">{{ store.maxStockSpeed }} km/h</span>
       </span>
     </div>
@@ -80,17 +116,26 @@
     </div>
 
     <div class="stock_warnings" v-if="stockHasWarnings">
-      <div class="warning" v-if="locoNotSuitable">(!) {{ $t('stocklist.warning-not-suitable') }}</div>
+      <div class="warning" v-if="locoNotSuitable">
+        (!) {{ $t('stocklist.warning-not-suitable') }}
+      </div>
 
-      <div class="warning" v-if="trainTooLong && store.isTrainPassenger">(!) {{ $t('stocklist.warning-passenger-too-long') }}</div>
+      <div class="warning" v-if="trainTooLong && store.isTrainPassenger">
+        (!) {{ $t('stocklist.warning-passenger-too-long') }}
+      </div>
 
-      <div class="warning" v-if="trainTooLong && !store.isTrainPassenger">(!) {{ $t('stocklist.warning-freight-too-long') }}</div>
+      <div class="warning" v-if="trainTooLong && !store.isTrainPassenger">
+        (!) {{ $t('stocklist.warning-freight-too-long') }}
+      </div>
 
       <div class="warning" v-if="trainTooHeavy">
         (!)
         <i18n-t keypath="stocklist.warning-too-heavy">
           <template #href>
-            <a target="_blank" href="https://docs.google.com/spreadsheets/d/1KVa5vn2d8XGkXQFwbavVudwKqUQxbLOucHWs2VYqAUE">
+            <a
+              target="_blank"
+              href="https://docs.google.com/spreadsheets/d/1KVa5vn2d8XGkXQFwbavVudwKqUQxbLOucHWs2VYqAUE"
+            >
               {{ $t('stocklist.acceptable-mass-docs') }}
             </a>
           </template>
@@ -123,7 +168,13 @@
           @keydown.backspace="removeStock(i)"
           ref="itemRefs"
         >
-          <div class="stock-info" @dragstart="onDragStart(i)" @drop="onDrop($event, i)" @dragover="allowDrop" draggable="true">
+          <div
+            class="stock-info"
+            @dragstart="onDragStart(i)"
+            @drop="onDrop($event, i)"
+            @dragover="allowDrop"
+            draggable="true"
+          >
             <span class="stock-info__no" :data-selected="i == store.chosenStockListIndex">
               <span v-if="i == store.chosenStockListIndex">&bull;&nbsp;</span>
               {{ i + 1 }}.
@@ -137,7 +188,9 @@
               {{ stock.cargo.id }}
             </span>
             <span class="stock-info__length">{{ stock.length }}m</span>
-            <span class="stock-info__mass">{{ ((stock.weight + (stock.cargo?.weight ?? 0)) / 1000).toFixed(1) }}t</span>
+            <span class="stock-info__mass"
+              >{{ ((stock.weight + (stock.cargo?.weight ?? 0)) / 1000).toFixed(1) }}t</span
+            >
             <span class="stock-info__speed">{{ stock.maxSpeed }}km/h</span>
           </div>
         </li>
@@ -184,11 +237,13 @@ export default defineComponent({
       if (this.store.stockList.length == 0) return '';
 
       const includeColdStart = this.store.isColdStart && this.store.stockSupportsColdStart;
-      const includeDoubleManned = this.store.isDoubleManned && this.store.stockSupportsDoubleManning;
+      const includeDoubleManned =
+        this.store.isDoubleManned && this.store.stockSupportsDoubleManning;
 
       return this.store.stockList
         .map((stock, i) => {
-          let stockTypeStr = stock.isLoco || !stock.cargo ? stock.type : `${stock.type}:${stock.cargo.id}`;
+          let stockTypeStr =
+            stock.isLoco || !stock.cargo ? stock.type : `${stock.type}:${stock.cargo.id}`;
 
           if (i == 0 && (includeColdStart || includeDoubleManned))
             return `${stockTypeStr},${includeColdStart ? 'c' : ''}${includeDoubleManned ? 'd' : ''}`;
@@ -203,11 +258,21 @@ export default defineComponent({
     },
 
     chosenStockVehicle() {
-      return this.store.chosenStockListIndex == -1 ? undefined : this.store.stockList[this.store.chosenStockListIndex];
+      return this.store.chosenStockListIndex == -1
+        ? undefined
+        : this.store.stockList[this.store.chosenStockListIndex];
     },
 
     stockHasWarnings() {
-      return this.tooManyLocomotives || this.trainTooHeavy || this.trainTooLong || this.locoNotSuitable;
+      return (
+        this.tooManyLocomotives || this.trainTooHeavy || this.trainTooLong || this.locoNotSuitable
+      );
+    },
+
+    chosenRealComposition() {
+      const currentStockString = this.store.stockList.map((s) => s.type).join(';');
+
+      return this.store.realCompositionList.find((rc) => rc.stockString == currentStockString);
     },
   },
 
@@ -227,7 +292,10 @@ export default defineComponent({
     onListItemClick(stockID: number) {
       const stock = this.store.stockList[stockID];
 
-      this.store.chosenStockListIndex = this.store.chosenStockListIndex == stockID && this.store.chosenVehicle?.type == stock.type ? -1 : stockID;
+      this.store.chosenStockListIndex =
+        this.store.chosenStockListIndex == stockID && this.store.chosenVehicle?.type == stock.type
+          ? -1
+          : stockID;
 
       if (this.store.chosenStockListIndex == -1) {
         this.store.chosenVehicle = null;
@@ -313,7 +381,8 @@ export default defineComponent({
 
         availableIndexes.splice(i, -1);
 
-        const randAvailableIndex = availableIndexes[Math.floor(Math.random() * availableIndexes.length)];
+        const randAvailableIndex =
+          availableIndexes[Math.floor(Math.random() * availableIndexes.length)];
         const tempSwap = this.store.stockList[randAvailableIndex];
 
         this.store.stockList[randAvailableIndex] = this.store.stockList[i];
@@ -324,7 +393,7 @@ export default defineComponent({
     downloadStock() {
       if (this.store.stockList.length == 0) return alert(this.$t('stocklist.alert-empty'));
 
-      const defaultName = `${this.store.chosenRealStockName || this.store.stockList[0].type} ${(this.store.totalWeight / 1000).toFixed(1)}t; ${
+      const defaultName = `${this.chosenRealComposition ? this.chosenRealComposition.stockId + ' ' : ''}${this.store.stockList[0].type} ${(this.store.totalWeight / 1000).toFixed(1)}t; ${
         this.store.totalLength
       }m; vmax ${this.store.maxStockSpeed}`;
 
diff --git a/src/components/tabs/WikiListTab.vue b/src/components/tabs/WikiListTab.vue
index f15f416..3edaa2b 100644
--- a/src/components/tabs/WikiListTab.vue
+++ b/src/components/tabs/WikiListTab.vue
@@ -7,10 +7,18 @@
     <div class="tab_content">
       <div class="actions-panel">
         <div class="actions-panel_vehicles">
-          <button class="btn" :data-chosen="currentFilterMode == 'tractions'" @click="toggleFilter('tractions')">
+          <button
+            class="btn"
+            :data-chosen="currentFilterMode == 'tractions'"
+            @click="toggleFilter('tractions')"
+          >
             {{ $t('wiki.action-vehicles') }}
           </button>
-          <button class="btn" :data-chosen="currentFilterMode == 'carriages'" @click="toggleFilter('carriages')">
+          <button
+            class="btn"
+            :data-chosen="currentFilterMode == 'carriages'"
+            @click="toggleFilter('carriages')"
+          >
             {{ $t('wiki.action-carriages') }}
           </button>
         </div>
@@ -88,12 +96,21 @@
 import { defineComponent } from 'vue';
 import { useStore } from '../../store';
 import stockPreviewMixin from '../../mixins/stockPreviewMixin';
-import { Vehicle } from '../../types';
+import { IVehicle } from '../../types';
 import { isLocomotive } from '../../utils/vehicleUtils';
 import stockMixin from '../../mixins/stockMixin';
 import imageMixin from '../../mixins/imageMixin';
 
-type SorterID = 'type' | 'constructionType' | 'image' | 'length' | 'weight' | 'maxSpeed' | 'cargoCount' | 'group' | 'coldStart';
+type SorterID =
+  | 'type'
+  | 'constructionType'
+  | 'image'
+  | 'length'
+  | 'weight'
+  | 'maxSpeed'
+  | 'cargoCount'
+  | 'group'
+  | 'coldStart';
 
 interface IWikiHeader {
   id: SorterID;
@@ -102,7 +119,7 @@ interface IWikiHeader {
 }
 
 interface IWikiRow {
-  vehicle: Vehicle;
+  vehicle: IVehicle;
   show: boolean;
 }
 
@@ -170,7 +187,9 @@ export default defineComponent({
         case 'type':
         case 'constructionType':
         case 'group':
-          return direction == 1 ? row1.vehicle[id].localeCompare(row2.vehicle[id]) : row2.vehicle[id].localeCompare(row1.vehicle[id]);
+          return direction == 1
+            ? row1.vehicle[id].localeCompare(row2.vehicle[id])
+            : row2.vehicle[id].localeCompare(row1.vehicle[id]);
 
         case 'weight':
         case 'length':
@@ -185,7 +204,8 @@ export default defineComponent({
 
         case 'coldStart':
           return (
-            ((isLocomotive(row1.vehicle) && row1.vehicle.coldStart ? 1 : -1) - (isLocomotive(row2.vehicle) && row2.vehicle.coldStart ? 1 : -1)) *
+            ((isLocomotive(row1.vehicle) && row1.vehicle.coldStart ? 1 : -1) -
+              (isLocomotive(row2.vehicle) && row2.vehicle.coldStart ? 1 : -1)) *
             direction
           );
 
@@ -193,7 +213,9 @@ export default defineComponent({
           break;
       }
 
-      return direction == 1 ? row1.vehicle.type.localeCompare(row2.vehicle.type) : row2.vehicle.type.localeCompare(row1.vehicle.type);
+      return direction == 1
+        ? row1.vehicle.type.localeCompare(row2.vehicle.type)
+        : row2.vehicle.type.localeCompare(row1.vehicle.type);
     },
   },
 
diff --git a/src/components/utils/ImageFullscreenPreview.vue b/src/components/utils/ImageFullscreenPreview.vue
index d4df444..aa786f0 100644
--- a/src/components/utils/ImageFullscreenPreview.vue
+++ b/src/components/utils/ImageFullscreenPreview.vue
@@ -10,8 +10,8 @@
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
-import { useStore } from "../../store";
+import { defineComponent } from 'vue';
+import { useStore } from '../../store';
 
 export default defineComponent({
   data() {
diff --git a/src/components/utils/StockThumbnails.vue b/src/components/utils/StockThumbnails.vue
index c29e3e5..370aa7b 100644
--- a/src/components/utils/StockThumbnails.vue
+++ b/src/components/utils/StockThumbnails.vue
@@ -28,18 +28,18 @@
 </template>
 
 <script setup lang="ts">
-import { Ref, computed, nextTick, ref, watch } from "vue";
-import { useStore } from "../../store";
-import { IStock } from "../../types";
+import { Ref, computed, nextTick, ref, watch } from 'vue';
+import { useStore } from '../../store';
+import { IStock } from '../../types';
 
 const store = useStore();
-const emit = defineEmits(["listItemClick"]);
+const emit = defineEmits(['listItemClick']);
 
 const thumbnailsRef = ref() as Ref<HTMLElement>;
 const draggedIndex = ref(-1);
 
 const onListItemClick = (index: number) => {
-  emit("listItemClick", index);
+  emit('listItemClick', index);
 };
 
 const stockImageError = (e: Event, stock: IStock) => {
@@ -55,12 +55,12 @@ watch(
       (thumbnailsRef.value as HTMLElement)
         .querySelector(`div:nth-child(${index + 1})`)
         ?.scrollIntoView({
-          block: "nearest",
-          inline: "start",
-          behavior: "smooth",
+          block: 'nearest',
+          inline: 'start',
+          behavior: 'smooth',
         });
     });
-  },
+  }
 );
 
 // Dragging images
@@ -71,9 +71,7 @@ const onDragStart = (vehicleIndex: number) => {
 const onDrop = (e: DragEvent, vehicleIndex: number) => {
   e.preventDefault();
 
-  let targetEl = thumbnailsRef.value.querySelector(
-    `div:nth-child(${vehicleIndex + 1})`,
-  );
+  let targetEl = thumbnailsRef.value.querySelector(`div:nth-child(${vehicleIndex + 1})`);
 
   if (!targetEl && draggedIndex.value != -1) return;
 
@@ -114,7 +112,7 @@ const allowDrop = (e: DragEvent) => {
   -moz-user-select: none;
   -webkit-user-select: none;
 
-  &[data-selected="true"] {
+  &[data-selected='true'] {
     background-color: rebeccapurple;
   }
 
@@ -123,7 +121,7 @@ const allowDrop = (e: DragEvent) => {
     margin: 0 1em;
   }
 
-  &[data-sponsor="true"] > b {
+  &[data-sponsor='true'] > b {
     color: salmon;
   }
 
diff --git a/src/constants/numberGeneratorData.json b/src/constants/numberGeneratorData.json
index c279298..0366a8b 100644
--- a/src/constants/numberGeneratorData.json
+++ b/src/constants/numberGeneratorData.json
@@ -12,7 +12,8 @@
   },
   "sameRegions": {
     "Losowy": [
-      10, 11, 19, 91, 93, 97, 99, 20, 22, 29, 30, 33, 39, 40, 44, 49, 94, 50, 55, 59, 90, 95, 96, 66, 60, 69, 77, 70, 79, 88, 80, 89, 92, 98
+      10, 11, 19, 91, 93, 97, 99, 20, 22, 29, 30, 33, 39, 40, 44, 49, 94, 50, 55, 59, 90, 95, 96,
+      66, 60, 69, 77, 70, 79, 88, 80, 89, 92, 98
     ],
     "Warszawa (1)": [10, 11, 19, 91, 93, 97, 99],
     "Lublin (2)": [20, 22, 29],
diff --git a/src/enums/EVehicleUseType.ts b/src/enums/EVehicleUseType.ts
index 6b73b6e..1e68311 100644
--- a/src/enums/EVehicleUseType.ts
+++ b/src/enums/EVehicleUseType.ts
@@ -1,9 +1,9 @@
 export const enum EVehicleUseType {
-  LOCO_ELECTRICAL = "loco-e",
-  LOCO_DIESEL = "loco-s",
-  EMU = "loco-ezt",
-  DMU = "loco-szt",
+  LOCO_ELECTRICAL = 'loco-e',
+  LOCO_DIESEL = 'loco-s',
+  EMU = 'loco-ezt',
+  DMU = 'loco-szt',
 
-  CAR_PASSENGER = "car-passenger",
-  CAR_CARGO = "car-cargo",
+  CAR_PASSENGER = 'car-passenger',
+  CAR_CARGO = 'car-cargo',
 }
diff --git a/src/http.ts b/src/http.ts
index 084d54c..5c7fb87 100644
--- a/src/http.ts
+++ b/src/http.ts
@@ -1,10 +1,10 @@
-import axios from "axios";
+import axios from 'axios';
 
 const http = axios.create({
   baseURL:
-    import.meta.env.VITE_API_DEV === "1" && import.meta.env.DEV
-      ? "http://localhost:5500"
-      : "https://spythere.github.io/api",
+    import.meta.env.VITE_API_DEV === '1' && import.meta.env.DEV
+      ? 'http://localhost:5500'
+      : 'https://static.spythere.eu',
 });
 
 export default http;
diff --git a/src/i18n-setup.ts b/src/i18n-setup.ts
index 9dfe020..faf09d4 100644
--- a/src/i18n-setup.ts
+++ b/src/i18n-setup.ts
@@ -1,10 +1,9 @@
-import localePL from "./locales/pl.json";
-import localeEN from "./locales/en.json";
-import { createI18n } from "vue-i18n";
-import http from "./http";
+import localePL from './locales/pl.json';
+import localeEN from './locales/en.json';
+import { createI18n } from 'vue-i18n';
 
 type LocaleMessageSchema = typeof localePL;
-type LocaleKey = "en" | "pl";
+type LocaleKey = 'en' | 'pl';
 
 const locales: { [key in LocaleKey]: LocaleMessageSchema } = {
   en: localeEN,
@@ -12,24 +11,14 @@ const locales: { [key in LocaleKey]: LocaleMessageSchema } = {
 };
 
 const locale =
-  window.localStorage.getItem("locale") ||
-  (/^pl\b/.test(navigator.language) ? "pl" : "en");
+  window.localStorage.getItem('locale') || (/^pl\b/.test(navigator.language) ? 'pl' : 'en');
 
-const i18n = createI18n<[LocaleMessageSchema], "en" | "pl">({
+const i18n = createI18n<[LocaleMessageSchema], 'en' | 'pl'>({
   locale,
-  fallbackLocale: "pl",
+  fallbackLocale: 'pl',
   legacy: false,
   globalInjection: true,
   messages: locales,
 });
 
-async function fetchBackendTranslations() {
-  const localeData = (await http.get(`td2/data/locales.json`)).data;
-
-  i18n.global.mergeLocaleMessage("pl", localeData.pl);
-  i18n.global.mergeLocaleMessage("en", localeData.en);
-}
-
-fetchBackendTranslations();
-
 export default i18n;
diff --git a/src/locales/en.json b/src/locales/en.json
index 19a9f55..760f915 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -47,6 +47,7 @@
   },
   "stocklist": {
     "title": "STOCK EDITOR",
+    "disclaimer": "Theorethical value based on vehicles maximum speed in the current composition. It may be inaccurate in relation to the correct operational speed in certain configurations.",
     "alert-copied": "The rolling stock has been copied to your clipboard!",
     "alert-empty": "Lista pojazdów jest pusta!",
     "prompt-file": "Name a file and download it to the Presets folder (Documents/TTSK/TrainDriver2):",
diff --git a/src/locales/pl.json b/src/locales/pl.json
index f18b0df..9a2ff76 100644
--- a/src/locales/pl.json
+++ b/src/locales/pl.json
@@ -47,6 +47,7 @@
   },
   "stocklist": {
     "title": "EDYTOR SKŁADU",
+    "disclaimer": "Wartość poglądowa wzorowana na prędkościach maksymalnych poszczególnych pojazdów w zestawieniu. Może nie zgadzać się z prawdziwymi prędkościami eksploatacyjnymi w konkretnych konfiguracjach.",
     "alert-copied": "Skład został skopiowany do twojego schowka!",
     "alert-empty": "Lista pojazdów jest pusta!",
     "prompt-file": "Nazwij plik, a następnie pobierz do folderu Presets (Dokumenty/TTSK/TrainDriver2):",
diff --git a/src/main.ts b/src/main.ts
index 59fa9c7..60bbb60 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,8 @@
-import { createApp } from "vue";
-import { createPinia } from "pinia";
+import { createApp } from 'vue';
+import { createPinia } from 'pinia';
 
-import App from "./App.vue";
-import i18n from "./i18n-setup";
+import App from './App.vue';
+import i18n from './i18n-setup';
 const pinia = createPinia();
 
-createApp(App).use(pinia).use(i18n).mount("#app");
+createApp(App).use(pinia).use(i18n).mount('#app');
diff --git a/src/mixins/imageMixin.ts b/src/mixins/imageMixin.ts
index d8c9405..ee92380 100644
--- a/src/mixins/imageMixin.ts
+++ b/src/mixins/imageMixin.ts
@@ -1,17 +1,17 @@
-import { defineComponent } from "vue";
+import { defineComponent } from 'vue';
 
 export default defineComponent({
   methods: {
-    getIconURL(name: string, ext = "svg"): string {
+    getIconURL(name: string, ext = 'svg'): string {
       return `/images/icon-${name}.${ext}`;
     },
 
-    getThumbnailURL(vehicleType: string, size: "small" | "large") {
+    getThumbnailURL(vehicleType: string, size: 'small' | 'large') {
       return `${
-        import.meta.env.VITE_API_DEV === "1"
-          ? "http://localhost:5500"
-          : "https://spythere.github.io/api"
-      }/td2/images/${vehicleType}--${size == "small" ? 300 : 800}px.jpg`;
+        import.meta.env.VITE_API_DEV === '1'
+          ? 'http://localhost:5500'
+          : 'https://static.spythere.eu'
+      }/images/${vehicleType}--${size == 'small' ? 300 : 800}px.jpg`;
     },
   },
 });
diff --git a/src/mixins/stockMixin.ts b/src/mixins/stockMixin.ts
index fce4a33..e146482 100644
--- a/src/mixins/stockMixin.ts
+++ b/src/mixins/stockMixin.ts
@@ -1,6 +1,6 @@
 import { defineComponent } from 'vue';
 import { useStore } from '../store';
-import { ICarWagon, ILocomotive, IStock, ICargo, Vehicle } from '../types';
+import { ICarWagon, ILocomotive, IStock, ICargo, IVehicle } from '../types';
 import { isLocomotive } from '../utils/vehicleUtils';
 
 export default defineComponent({
@@ -15,7 +15,7 @@ export default defineComponent({
       return `${Math.random().toString(36).slice(5)}`;
     },
 
-    getStockObject(vehicle: Vehicle, cargo?: ICargo | null, count = 1): IStock {
+    getStockObject(vehicle: IVehicle, cargo?: ICargo | null, count = 1): IStock {
       const isLoco = isLocomotive(vehicle);
 
       return {
@@ -35,7 +35,7 @@ export default defineComponent({
       };
     },
 
-    addVehicle(vehicle: Vehicle | null, cargo?: ICargo | null) {
+    addVehicle(vehicle: IVehicle | null, cargo?: ICargo | null) {
       if (!vehicle) return;
 
       const stock = this.getStockObject(vehicle, cargo);
@@ -47,7 +47,8 @@ export default defineComponent({
     addLocomotive(loco: ILocomotive) {
       const stockObj = this.getStockObject(loco);
 
-      if (this.store.stockList.length > 0 && !this.store.stockList[0].isLoco) this.store.stockList.unshift(stockObj);
+      if (this.store.stockList.length > 0 && !this.store.stockList[0].isLoco)
+        this.store.stockList.unshift(stockObj);
       else this.store.stockList.push(stockObj);
     },
 
@@ -70,7 +71,7 @@ export default defineComponent({
       this.store.swapVehicles = false;
 
       stockArray.forEach((type, i) => {
-        let vehicle: Vehicle | null = null;
+        let vehicle: IVehicle | null = null;
         let vehicleCargo: ICargo | null = null;
 
         const isLoco = /^(EU|EP|ET|SM|EN|2EN|SN)/.test(type);
diff --git a/src/mixins/stockPreviewMixin.ts b/src/mixins/stockPreviewMixin.ts
index ba00021..22a54c8 100644
--- a/src/mixins/stockPreviewMixin.ts
+++ b/src/mixins/stockPreviewMixin.ts
@@ -1,6 +1,6 @@
 import { defineComponent } from 'vue';
 import { useStore } from '../store';
-import { ICarWagon, ILocomotive, IStock, Vehicle } from '../types';
+import { ICarWagon, ILocomotive, IStock, IVehicle } from '../types';
 import { isLocomotive } from '../utils/vehicleUtils';
 
 export default defineComponent({
@@ -46,7 +46,7 @@ export default defineComponent({
       this.store.chosenCargo = null;
     },
 
-    previewVehicle(vehicle: Vehicle) {
+    previewVehicle(vehicle: IVehicle) {
       if (isLocomotive(vehicle)) this.previewLocomotive(vehicle);
       else this.previewCarWagon(vehicle);
     },
diff --git a/src/mixins/warningsMixin.ts b/src/mixins/warningsMixin.ts
index 1985d7b..079b96f 100644
--- a/src/mixins/warningsMixin.ts
+++ b/src/mixins/warningsMixin.ts
@@ -11,7 +11,10 @@ export default defineComponent({
   },
   computed: {
     trainTooLong() {
-      return (this.store.totalLength > 350 && this.store.isTrainPassenger) || (this.store.totalLength > 650 && !this.store.isTrainPassenger);
+      return (
+        (this.store.totalLength > 350 && this.store.isTrainPassenger) ||
+        (this.store.totalLength > 650 && !this.store.isTrainPassenger)
+      );
     },
 
     trainTooHeavy() {
diff --git a/src/store.ts b/src/store.ts
index 4e13a91..a19e4ff 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -1,9 +1,16 @@
-import { IStockData, IStore } from './types';
+import {
+  IVehiclesAPI,
+  ICarWagon,
+  ILocomotive,
+  ICargo,
+  IVehicle,
+  IStock,
+  IRealComposition,
+} from './types';
 import { defineStore } from 'pinia';
 import {
-  acceptableMass as acceptableWeight,
+  acceptableWeight,
   carDataList,
-  chosenRealStock,
   isTrainPassenger,
   locoDataList,
   maxStockSpeed,
@@ -11,57 +18,80 @@ import {
   totalWeight,
 } from './utils/vehicleUtils';
 import http from './http';
+import i18n from './i18n-setup';
 
 export const useStore = defineStore({
   id: 'store',
-  state: () =>
-    ({
-      chosenCar: null,
-      chosenLoco: null,
-      chosenCargo: null,
-      chosenVehicle: null,
+  state: () => ({
+    chosenCar: null as ICarWagon | null,
+    chosenLoco: null as ILocomotive | null,
+    chosenCargo: null as ICargo | null,
+    chosenVehicle: null as IVehicle | null,
 
-      isColdStart: false,
-      isDoubleManned: false,
+    isColdStart: false,
+    isDoubleManned: false,
 
-      showSupporter: false,
-      imageLoading: false,
+    imageLoading: false,
 
-      chosenLocoPower: 'loco-e',
-      chosenCarUseType: 'car-passenger',
+    chosenLocoPower: 'loco-e',
+    chosenCarUseType: 'car-passenger',
 
-      stockList: [],
-      cargoOptions: [],
+    stockList: [] as IStock[],
+    cargoOptions: [] as any[][],
 
-      readyStockList: [],
+    swapVehicles: false,
 
-      swapVehicles: false,
+    chosenStockListIndex: -1,
 
-      chosenStockListIndex: -1,
-      chosenRealStockName: undefined,
+    vehiclePreviewSrc: '',
 
-      vehiclePreviewSrc: '',
+    stockSectionMode: 'stock-list',
 
-      stockSectionMode: 'stock-list',
+    isRandomizerCardOpen: false,
+    isRealStockListCardOpen: false,
 
-      isRandomizerCardOpen: false,
-      isRealStockListCardOpen: false,
+    vehiclesAPIData: undefined as IVehiclesAPI | undefined,
 
-      stockData: undefined,
-
-      lastFocusedElement: null,
-    }) as IStore,
+    lastFocusedElement: null as HTMLElement | null,
+  }),
 
   getters: {
-    locoDataList: (state) => locoDataList(state),
-    carDataList: (state) => carDataList(state),
-    vehicleDataList: (state) => [...locoDataList(state), ...carDataList(state)],
-    totalWeight: (state) => totalWeight(state),
-    totalLength: (state) => totalLength(state),
-    maxStockSpeed: (state) => maxStockSpeed(state),
-    isTrainPassenger: (state) => isTrainPassenger(state),
-    chosenRealStock: (state) => chosenRealStock(state),
-    acceptableWeight: (state) => acceptableWeight(state),
+    locoDataList: (state) => locoDataList(state.vehiclesAPIData),
+    carDataList: (state) => carDataList(state.vehiclesAPIData),
+    vehicleDataList: (state) => [
+      ...locoDataList(state.vehiclesAPIData),
+      ...carDataList(state.vehiclesAPIData),
+    ],
+    totalWeight: (state) => totalWeight(state.stockList),
+    totalLength: (state) => totalLength(state.stockList),
+    maxStockSpeed: (state) => maxStockSpeed(state.stockList),
+    isTrainPassenger: (state) => isTrainPassenger(state.stockList),
+    acceptableWeight: (state) => acceptableWeight(state.stockList),
+
+    realCompositionList: (state) => {
+      if (!state.vehiclesAPIData) return [];
+
+      return Object.keys(state.vehiclesAPIData.realCompositions).reduce<IRealComposition[]>(
+        (acc, key) => {
+          const [type, number, ...name] = key.split(' ');
+
+          const obj = {
+            number: number.replace(/_/g, '/'),
+            name: name.join(' '),
+            stockString: state.vehiclesAPIData!.realCompositions[key],
+            type,
+          };
+
+          acc.push({
+            stockId: `${obj.type} ${obj.number} ${obj.name}`,
+            ...obj,
+          });
+
+          return acc;
+        },
+        []
+      );
+    },
 
     stockSupportsColdStart: (state) => {
       if (state.stockList.length == 0) return false;
@@ -69,7 +99,11 @@ export const useStore = defineStore({
 
       const headingLoco = state.stockList[0];
 
-      return state.stockData?.props.find((stock) => stock.type == headingLoco.constructionType)?.coldStart ?? false;
+      return (
+        state.vehiclesAPIData?.vehicleProps.find(
+          (stock) => stock.type == headingLoco.constructionType
+        )?.coldStart ?? false
+      );
     },
 
     stockSupportsDoubleManning: (state) => {
@@ -78,14 +112,34 @@ export const useStore = defineStore({
 
       const headingLoco = state.stockList[0];
 
-      return state.stockData?.props.find((stock) => stock.type == headingLoco.constructionType)?.doubleManned ?? false;
+      return (
+        state.vehiclesAPIData?.vehicleProps.find(
+          (stock) => stock.type == headingLoco.constructionType
+        )?.doubleManned ?? false
+      );
     },
   },
 
   actions: {
-    async fetchStockInfoData() {
-      const stockData = (await http.get<IStockData>('td2/data/stockInfo.json')).data;
-      this.stockData = stockData;
+    async fetchVehiclesAPI() {
+      try {
+        const vehiclesData = (await http.get<IVehiclesAPI>('/vehicles.json')).data;
+        this.vehiclesAPIData = vehiclesData;
+      } catch (error) {
+        console.error(error);
+      }
+    },
+
+    async setupAPIData() {
+      await this.fetchVehiclesAPI();
+      this.mergeBackendTranslations();
+    },
+
+    async mergeBackendTranslations() {
+      if (!this.vehiclesAPIData) return;
+
+      i18n.global.mergeLocaleMessage('pl', this.vehiclesAPIData.vehicleLocales.pl);
+      i18n.global.mergeLocaleMessage('en', this.vehiclesAPIData.vehicleLocales.en);
     },
 
     handleRouting() {
diff --git a/src/styles/global.scss b/src/styles/global.scss
index b5101a3..b9f2d14 100644
--- a/src/styles/global.scss
+++ b/src/styles/global.scss
@@ -7,30 +7,30 @@ $secondaryColor: #1b1b1b;
 $accentColor: #e4c428;
 
 @font-face {
-  font-family: "Lato";
+  font-family: 'Lato';
   src:
-    url("/fonts/Lato-Light.woff2") format("woff2"),
-    url("/fonts/Lato-Light.woff") format("woff");
+    url('/fonts/Lato-Light.woff2') format('woff2'),
+    url('/fonts/Lato-Light.woff') format('woff');
   font-weight: 300;
   font-style: normal;
   font-display: swap;
 }
 
 @font-face {
-  font-family: "Lato";
+  font-family: 'Lato';
   src:
-    url("/fonts/Lato-Bold.woff2") format("woff2"),
-    url("/fonts/Lato-Bold.woff") format("woff");
+    url('/fonts/Lato-Bold.woff2') format('woff2'),
+    url('/fonts/Lato-Bold.woff') format('woff');
   font-weight: bold;
   font-style: normal;
   font-display: swap;
 }
 
 @font-face {
-  font-family: "Lato";
+  font-family: 'Lato';
   src:
-    url("/fonts/Lato-Regular.woff2") format("woff2"),
-    url("/fonts/Lato-Regular.woff") format("woff");
+    url('/fonts/Lato-Regular.woff2') format('woff2'),
+    url('/fonts/Lato-Regular.woff') format('woff');
   font-weight: normal;
   font-style: normal;
   font-display: swap;
@@ -114,6 +114,23 @@ button {
   }
 }
 
+[data-tooltip]:hover::after,
+[data-tooltip]:focus::after {
+  position: absolute;
+  transform: translateX(10px);
+
+  content: attr(data-tooltip);
+  color: white;
+  background: black;
+  padding: 0.5em;
+  max-width: 300px;
+  z-index: 100;
+}
+
+[data-tooltip] {
+  cursor: pointer;
+}
+
 .btn {
   padding: 0.4em 0.75em;
 
@@ -141,14 +158,14 @@ button {
     outline: 1px solid white;
   }
 
-  &[data-chosen="true"] {
+  &[data-chosen='true'] {
     background-color: $accentColor;
     color: black;
 
     box-shadow: 0 0 5px 1px $accentColor;
   }
 
-  &[data-disabled="true"] {
+  &[data-disabled='true'] {
     user-select: none;
     pointer-events: none;
     -moz-user-select: none;
@@ -183,8 +200,8 @@ button {
 }
 
 select,
-input[type="text"],
-input[type="number"] {
+input[type='text'],
+input[type='number'] {
   background: $bgColor;
   border: 2px solid #aaa;
   outline: none;
diff --git a/src/styles/tab.scss b/src/styles/tab.scss
index f8fee13..1716164 100644
--- a/src/styles/tab.scss
+++ b/src/styles/tab.scss
@@ -1,4 +1,4 @@
-@import "./global.scss";
+@import './global.scss';
 
 .tab {
   height: 100%;
diff --git a/src/types.ts b/src/types.ts
index 1e2cb71..1d3e9cb 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,40 +1,6 @@
-export type Vehicle = ILocomotive | ICarWagon;
+export type IVehicle = ILocomotive | ICarWagon;
 export type StockSectionMode = 'STOCK_LIST' | 'STOCK_GENERATOR';
 
-export interface IStore {
-  chosenCar: ICarWagon | null;
-  chosenLoco: ILocomotive | null;
-  chosenCargo: ICargo | null;
-  chosenVehicle: Vehicle | null;
-
-  isColdStart: boolean;
-  isDoubleManned: boolean;
-
-  showSupporter: boolean;
-  imageLoading: boolean;
-
-  chosenLocoPower: string;
-  chosenCarUseType: string;
-
-  stockList: IStock[];
-  readyStockList: IReadyStockItem[];
-  cargoOptions: any[][];
-
-  chosenStockListIndex: number;
-  chosenRealStockName?: string;
-
-  swapVehicles: boolean;
-  vehiclePreviewSrc: string;
-
-  isRandomizerCardOpen: boolean;
-  isRealStockListCardOpen: boolean;
-
-  stockSectionMode: 'stock-list' | 'stock-generator' | 'number-generator' | 'wiki-list';
-  stockData?: IStockData;
-
-  lastFocusedElement: HTMLElement | null;
-}
-
 export type TLocoGroup = 'loco-e' | 'loco-s' | 'loco-ezt' | 'loco-szt';
 export type TCarWagonGroup = 'car-passenger' | 'car-cargo';
 
@@ -54,17 +20,16 @@ export interface ICargo {
   weight: number;
 }
 
-export interface IStockData {
+export interface IVehiclesAPI {
   version: string;
 
   generator: {
-    passenger: any;
     cargo: {
       [key: string]: string[];
     };
   };
 
-  info: {
+  vehicleInfo: {
     'car-cargo': [string, string, boolean, number | null, string][];
     'car-passenger': [string, string, boolean, number | null, string][];
     'loco-e': [string, string, string, string, number | null][];
@@ -73,7 +38,20 @@ export interface IStockData {
     'loco-ezt': [string, string, string, string, number | null][];
   };
 
-  props: IStockProps[];
+  vehicleProps: IStockProps[];
+
+  vehicleLocales: {
+    pl: {
+      cargo: Record<string, string>;
+      usage: Record<string, string>;
+    };
+    en: {
+      cargo: Record<string, string>;
+      usage: Record<string, string>;
+    };
+  };
+
+  realCompositions: Record<string, string>;
 }
 
 export interface ILocomotive {
@@ -124,7 +102,7 @@ export interface IStock {
   imgSrc?: string;
 }
 
-export interface IReadyStockItem {
+export interface IRealComposition {
   stockId: string;
   stockString: string;
   type: string;
diff --git a/src/utils/vehicleLimitsUtils.ts b/src/utils/vehicleLimitsUtils.ts
index 13aa3f5..722cd65 100644
--- a/src/utils/vehicleLimitsUtils.ts
+++ b/src/utils/vehicleLimitsUtils.ts
@@ -4,7 +4,12 @@ import massLimits from '../constants/massLimits.json';
 export type SpeedLimitLocoType = keyof typeof speedLimits;
 export type MassLimitLocoType = keyof typeof massLimits;
 
-export function calculateSpeedLimit(locoType: SpeedLimitLocoType, stockTotalWeight: number, stockCount: number, isTrainPassenger: boolean) {
+export function calculateSpeedLimit(
+  locoType: SpeedLimitLocoType,
+  stockTotalWeight: number,
+  stockCount: number,
+  isTrainPassenger: boolean
+) {
   if (speedLimits[locoType] === undefined) return 0;
 
   if (stockCount == 1) return speedLimits[locoType]['none'];
@@ -15,7 +20,8 @@ export function calculateSpeedLimit(locoType: SpeedLimitLocoType, stockTotalWeig
   if (!speedTable) return undefined;
 
   let speedLimit = 0;
-  for (const mass in speedTable) if (stockTotalWeight > Number(mass)) speedLimit = (speedTable as any)[mass];
+  for (const mass in speedTable)
+    if (stockTotalWeight > Number(mass)) speedLimit = (speedTable as any)[mass];
 
   return speedLimit;
 }
diff --git a/src/utils/vehicleUtils.ts b/src/utils/vehicleUtils.ts
index 7245456..886db40 100644
--- a/src/utils/vehicleUtils.ts
+++ b/src/utils/vehicleUtils.ts
@@ -1,26 +1,29 @@
 import { EVehicleUseType } from '../enums/EVehicleUseType';
-import { ICarWagon, ILocomotive, IStore, TCarWagonGroup, TLocoGroup } from '../types';
-import { MassLimitLocoType, SpeedLimitLocoType, calculateMassLimit, calculateSpeedLimit } from './vehicleLimitsUtils';
+import { ICarWagon, ILocomotive, IStock, IVehiclesAPI, TCarWagonGroup, TLocoGroup } from '../types';
+import {
+  MassLimitLocoType,
+  SpeedLimitLocoType,
+  calculateMassLimit,
+  calculateSpeedLimit,
+} from './vehicleLimitsUtils';
 
 export function isLocomotive(vehicle: ILocomotive | ICarWagon): vehicle is ILocomotive {
   return (vehicle as ILocomotive).power !== undefined;
 }
 
-export function locoDataList(state: IStore) {
-  if (!state.stockData) return [];
+export function locoDataList(vehiclesData: IVehiclesAPI | undefined) {
+  if (!vehiclesData) return [];
 
-  const stockData = state.stockData;
-
-  return Object.keys(stockData.info).reduce((acc, vehiclePower) => {
+  return Object.keys(vehiclesData.vehicleInfo).reduce((acc, vehiclePower) => {
     if (!vehiclePower.startsWith('loco')) return acc;
 
-    const locoVehiclesData = stockData.info[vehiclePower as TLocoGroup];
+    const locoVehiclesData = vehiclesData.vehicleInfo[vehiclePower as TLocoGroup];
 
     locoVehiclesData.forEach((loco) => {
-      if (state.showSupporter && !loco[4]) return;
+      // if (!loco[4]) return;
 
       const [type, constructionType, cabinType, maxSpeed, sponsorsTimestamp] = loco;
-      const locoProps = stockData.props.find((prop) => constructionType == prop.type);
+      const locoProps = vehiclesData.vehicleProps.find((prop) => constructionType == prop.type);
 
       acc.push({
         power: vehiclePower as TLocoGroup,
@@ -33,7 +36,10 @@ export function locoDataList(state: IStore) {
         sponsorsOnlyTimestamp: Number(sponsorsTimestamp),
         imageSrc: '',
 
-        length: locoProps?.length && type.startsWith('2EN') ? locoProps.length * 2 : locoProps?.length ?? 0,
+        length:
+          locoProps?.length && type.startsWith('2EN')
+            ? locoProps.length * 2
+            : locoProps?.length ?? 0,
         weight: locoProps?.weight && type.startsWith('2EN') ? 253000 : locoProps?.weight ?? 0,
 
         coldStart: locoProps?.coldStart ?? false,
@@ -45,22 +51,22 @@ export function locoDataList(state: IStore) {
   }, [] as ILocomotive[]);
 }
 
-export function carDataList(state: IStore) {
-  if (!state.stockData) return [];
+export function carDataList(vehiclesData: IVehiclesAPI | undefined) {
+  if (!vehiclesData) return [];
 
-  const stockData = state.stockData;
-
-  return Object.keys(stockData.info).reduce((acc, vehicleUseType) => {
+  return Object.keys(vehiclesData.vehicleInfo).reduce((acc, vehicleUseType) => {
     if (!vehicleUseType.startsWith('car')) return acc;
 
-    const carVehiclesData = stockData.info[vehicleUseType as TCarWagonGroup];
+    const carVehiclesData = vehiclesData.vehicleInfo[vehicleUseType as TCarWagonGroup];
 
     carVehiclesData.forEach((car) => {
       const [type, constructionType, loadable, sponsorsOnlyTimestamp, maxSpeed] = car;
 
-      if (state.showSupporter && Number(sponsorsOnlyTimestamp) <= Date.now()) return;
+      if (sponsorsOnlyTimestamp && Number(sponsorsOnlyTimestamp) <= Date.now()) return;
 
-      const carPropsData = stockData.props.find((v) => type.toString().startsWith(v.type));
+      const carPropsData = vehiclesData.vehicleProps.find((v) =>
+        type.toString().startsWith(v.type)
+      );
 
       acc.push({
         useType: vehicleUseType as TCarWagonGroup,
@@ -83,17 +89,23 @@ export function carDataList(state: IStore) {
   }, [] as ICarWagon[]);
 }
 
-export function totalWeight(state: IStore) {
-  return state.stockList.reduce((acc, stock) => acc + (stock.weight + (stock.cargo?.weight ?? 0)) * stock.count, 0);
+export function totalWeight(stockList: IStock[]) {
+  return stockList.reduce(
+    (acc, stock) => acc + (stock.weight + (stock.cargo?.weight ?? 0)) * stock.count,
+    0
+  );
 }
 
-export function totalLength(state: IStore) {
-  return state.stockList.reduce((acc, stock) => acc + stock.length * stock.count, 0);
+export function totalLength(stockList: IStock[]) {
+  return stockList.reduce((acc, stock) => acc + stock.length * stock.count, 0);
 }
 
-export function maxStockSpeed(state: IStore) {
-  const stockSpeedLimit = state.stockList.reduce((acc, stock) => (stock.maxSpeed < acc || acc == 0 ? stock.maxSpeed : acc), 0);
-  const headingLoco = state.stockList[0]?.isLoco ? state.stockList[0] : undefined;
+export function maxStockSpeed(stockList: IStock[]) {
+  const stockSpeedLimit = stockList.reduce(
+    (acc, stock) => (stock.maxSpeed < acc || acc == 0 ? stock.maxSpeed : acc),
+    0
+  );
+  const headingLoco = stockList[0]?.isLoco ? stockList[0] : undefined;
 
   if (!headingLoco) return stockSpeedLimit;
 
@@ -101,39 +113,34 @@ export function maxStockSpeed(state: IStore) {
 
   if (/^(EN|2EN|SN)/.test(locoType)) return stockSpeedLimit;
 
-  const speedLimitByMass = calculateSpeedLimit(locoType as SpeedLimitLocoType, totalWeight(state), state.stockList.length, isTrainPassenger(state));
+  const speedLimitByMass = calculateSpeedLimit(
+    locoType as SpeedLimitLocoType,
+    totalWeight(stockList),
+    stockList.length,
+    isTrainPassenger(stockList)
+  );
 
   return speedLimitByMass ? Math.min(stockSpeedLimit, speedLimitByMass) : stockSpeedLimit;
 }
 
-export function acceptableMass(state: IStore) {
-  if (state.stockList.length == 0 || !state.stockList[0].isLoco) return 0;
+export function acceptableWeight(stockList: IStock[]) {
+  if (stockList.length == 0 || !stockList[0].isLoco) return 0;
 
-  const activeLocomotiveType = state.stockList[0].type.split('-')[0];
+  const activeLocomotiveType = stockList[0].type.split('-')[0];
 
-  const locoMassLimit = calculateMassLimit(activeLocomotiveType as MassLimitLocoType, isTrainPassenger(state));
+  const locoMassLimit = calculateMassLimit(
+    activeLocomotiveType as MassLimitLocoType,
+    isTrainPassenger(stockList)
+  );
 
   return locoMassLimit;
 }
 
-export function isTrainPassenger(state: IStore) {
-  if (state.stockList.length == 0) return false;
-  if (state.stockList.every((stock) => stock.isLoco)) return false;
+export function isTrainPassenger(stockList: IStock[]) {
+  if (stockList.length == 0) return false;
+  if (stockList.every((stock) => stock.isLoco)) return false;
 
-  return state.stockList.filter((stock) => !stock.isLoco).every((stock) => stock.useType === EVehicleUseType.CAR_PASSENGER);
-}
-
-export function chosenRealStock(state: IStore) {
-  const currentStockString = state.stockList
-    .reduce((acc, stock) => {
-      for (let i = 0; i < stock.count; i++) acc.push(stock.type);
-      return acc;
-    }, [] as string[])
-    .join(';');
-
-  const realStockObj = state.readyStockList.find((readyStock) => readyStock.stockString == currentStockString);
-
-  state.chosenRealStockName = realStockObj?.stockId ?? undefined;
-
-  return realStockObj;
+  return stockList
+    .filter((stock) => !stock.isLoco)
+    .every((stock) => stock.useType === EVehicleUseType.CAR_PASSENGER);
 }
diff --git a/src/views/AppContainerView.vue b/src/views/AppContainerView.vue
index d7dd0e0..c4bb958 100644
--- a/src/views/AppContainerView.vue
+++ b/src/views/AppContainerView.vue
@@ -6,11 +6,11 @@
 </template>
 
 <script lang="ts">
-import { defineComponent } from "vue";
-import { useStore } from "../store";
+import { defineComponent } from 'vue';
+import { useStore } from '../store';
 
-import MainContainer from "../components/app/MainContainer.vue";
-import FooterVue from "../components/app/Footer.vue";
+import MainContainer from '../components/app/MainContainer.vue';
+import FooterVue from '../components/app/Footer.vue';
 
 export default defineComponent({
   components: {
diff --git a/src/vite-env.d.ts b/src/vite-env.d.ts
index fc81239..af36df3 100644
--- a/src/vite-env.d.ts
+++ b/src/vite-env.d.ts
@@ -1,7 +1,7 @@
 /// <reference types="vite/client" />
 
-declare module "*.vue" {
-  import type { DefineComponent } from "vue";
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue';
   const component: DefineComponent<{}, {}, any>;
   export default component;
 }
diff --git a/vite.config.ts b/vite.config.ts
index 0cd1068..24b22c2 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -37,30 +37,16 @@ export default defineConfig({
             },
           },
           {
-            urlPattern: /^https:\/\/spythere.github.io\/api\/td2\/data\/.*/i,
-            handler: 'NetworkFirst',
-            options: {
-              cacheName: 'spythere-api-data-cache',
-              expiration: {
-                maxEntries: 150,
-                maxAgeSeconds: 60 * 60 * 24, // <== 1 day
-              },
-              cacheableResponse: {
-                statuses: [0, 200],
-              },
-            },
-          },
-          {
-            urlPattern: /^https:\/\/spythere.github.io\/api\/td2\/images\/.*/i,
+            urlPattern: /^https:\/\/static.spythere.eu\/.*/i,
             handler: 'CacheFirst',
             options: {
-              cacheName: 'spythere-api-images-cache',
+              cacheName: 'spythere-api-cache',
               expiration: {
-                maxEntries: 150,
+                maxEntries: 100,
                 maxAgeSeconds: 60 * 60 * 24, // <== 1 day
               },
               cacheableResponse: {
-                statuses: [0, 200],
+                statuses: [200, 302],
               },
             },
           },