diff --git a/module/applications/sheets/group-sheet.mjs b/module/applications/sheets/group-sheet.mjs
index f5b1438..f9a0b20 100644
--- a/module/applications/sheets/group-sheet.mjs
+++ b/module/applications/sheets/group-sheet.mjs
@@ -11,7 +11,8 @@ export default class VermineGroupSheetV2 extends VermineBaseActorSheet {
       deleteMember: VermineGroupSheetV2.#onDeleteMember,
       deleteEncounter: VermineGroupSheetV2.#onDeleteEncounter,
       deleteObjective: VermineGroupSheetV2.#onDeleteObjective,
-      addObjective: VermineGroupSheetV2.#onAddObjective
+      addObjective: VermineGroupSheetV2.#onAddObjective,
+      createTotemAbility: VermineGroupSheetV2.#onCreateTotemAbility
     }
   }
 
@@ -67,7 +68,8 @@ export default class VermineGroupSheetV2 extends VermineBaseActorSheet {
       case "main": break
       case "info":
         context.tab = context.tabs.info
-        context.abilities = doc.itemTypes.ability
+        context.abilities = doc.itemTypes.ability.filter(i => i.system.type !== "totem")
+        context.totem_abilities = doc.itemTypes.ability.filter(i => i.system.type === "totem")
         context.specialties = doc.itemTypes.specialty
         context.backgrounds = doc.itemTypes.background
         context.traumas = doc.itemTypes.trauma
@@ -135,4 +137,9 @@ export default class VermineGroupSheetV2 extends VermineBaseActorSheet {
     objectives[type].push("")
     this.document.update({ "system.objectives": objectives })
   }
+
+  static async #onCreateTotemAbility(event, target) {
+    const name = game.i18n.localize("ITEMS.new_ability")
+    await this.document.createEmbeddedDocuments("Item", [{ name, type: "ability", system: { type: "totem" } }])
+  }
 }
diff --git a/module/applications/sheets/item-sheets.mjs b/module/applications/sheets/item-sheets.mjs
index cf35e16..951ab61 100644
--- a/module/applications/sheets/item-sheets.mjs
+++ b/module/applications/sheets/item-sheets.mjs
@@ -22,6 +22,28 @@ export class VermineDefenseSheetV2 extends VermineBaseItemSheet {
 export class VermineVehicleSheetV2 extends VermineBaseItemSheet {
   static DEFAULT_OPTIONS = { classes: ["vehicle"], position: { width: 520 } }
   static PARTS = { main: { template: "systems/vermine2047/templates/item/item-vehicle-sheet.hbs", scrollable: [""] } }
+
+  async _prepareContext() {
+    const context = await super._prepareContext()
+    // Compétences d'Entretien possibles (mécanique, technologie, artisanat, animalisme…)
+    const maintenanceKeys = ["mecanical", "technology", "crafting", "animalism", "environment", "wildlife", "flora", "repulsion", "toxics"]
+    const current = this.document.system.maintenance || []
+    context.maintenanceSkills = maintenanceKeys.map(key => ({
+      key,
+      label: game.i18n.localize("SKILLS." + key + ".name"),
+      checked: current.includes(key)
+    }))
+    return context
+  }
+
+  /** @override - nettoie le tableau d'Entretien (retire les cases non cochées). */
+  _prepareSubmitData(event, form, formData, updateData) {
+    const result = super._prepareSubmitData(event, form, formData, updateData)
+    if (Array.isArray(result?.system?.maintenance)) {
+      result.system.maintenance = result.system.maintenance.filter(v => typeof v === "string" && v.trim() !== "")
+    }
+    return result
+  }
 }
 
 // ── Capacité ──────────────────────────────────────────────────────────
diff --git a/module/models/vehicle.mjs b/module/models/vehicle.mjs
index 58bc219..78ae47f 100644
--- a/module/models/vehicle.mjs
+++ b/module/models/vehicle.mjs
@@ -1,7 +1,9 @@
 import { baseItemSchema } from "./_shared.mjs"
 
 /**
- * DataModel pour les items de type "vehicle" (véhicules).
+ * DataModel pour les items de type "vehicle" (véhicules et montures).
+ * Caractéristiques : Rareté, Fiabilité, Distance, Vitesse (croisière/pointe),
+ * Entretien (compétences) et Réserve d'Effort (montures).
  * @augments {foundry.abstract.TypeDataModel}
  */
 export default class VermineVehicleData extends foundry.abstract.TypeDataModel {
@@ -14,6 +16,27 @@ export default class VermineVehicleData extends foundry.abstract.TypeDataModel {
     const reqInt = { required: true, nullable: false, integer: true }
     return {
       ...baseItemSchema(),
+      // Fiabilité étendue (1-10) pour les véhicules
+      reliability: new fields.NumberField({ ...reqInt, initial: 5, min: 1, max: 10 }),
+      // Type : "vehicle" (véhicule) ou "mount" (monture)
+      kind: new fields.StringField({ required: true, nullable: false, initial: "vehicle" }),
+      // Distance : km parcourus avec un "plein"
+      distance: new fields.NumberField({ ...reqInt, initial: 0, min: 0 }),
+      // Vitesse : croisière / pointe (durée de la pointe)
+      speed: new fields.SchemaField({
+        cruise: new fields.NumberField({ ...reqInt, initial: 0, min: 0 }),
+        top: new fields.NumberField({ ...reqInt, initial: 0, min: 0 }),
+        topDuration: new fields.StringField({ required: true, nullable: false, initial: "10 min" })
+      }),
+      // Entretien : compétences nécessaires (clés de CONFIG.VERMINE.skills)
+      maintenance: new fields.ArrayField(new fields.StringField({ required: true, nullable: false, initial: "" })),
+      // Réserve d'Effort (montures)
+      effortReserve: new fields.SchemaField({
+        value: new fields.NumberField({ ...reqInt, initial: 0, min: 0 }),
+        min: new fields.NumberField({ ...reqInt, initial: 0, min: 0 }),
+        max: new fields.NumberField({ ...reqInt, initial: 0, min: 0 })
+      }),
+      // Mobilité (héritée)
       mobility: new fields.NumberField({ ...reqInt, initial: 3, min: 0 })
     }
   }
diff --git a/templates/actor/appv2/group-info.hbs b/templates/actor/appv2/group-info.hbs
index 1aa504e..5a3329c 100644
--- a/templates/actor/appv2/group-info.hbs
+++ b/templates/actor/appv2/group-info.hbs
@@ -44,7 +44,7 @@
       </h4>
       <ol class="list-item">
         {{#each abilities as |item id|}}
-        {{#if (ne item.type 'totem')}}
+        {{#if (ne item.system.type 'totem')}}
         <li class="item flexrow" data-item-id="{{item._id}}">
           <div class="item-name" style="flex:4;">
             <a class="item-control item-edit" data-action="edit" data-item-id="{{item._id}}" title="{{ localize 'UI.effect_edit' }}">{{item.name}}</a>
@@ -60,6 +60,32 @@
       </ol>
     </div>
 
+    {{!-- Group Totem Abilities --}}
+    <div class="grid-span-2">
+      <h4>
+        <span>{{ localize 'VERMINE.totem_abilities' }}</span>
+        {{#if isEditMode}}
+        <a class="item-control item-create" data-action="createTotemAbility" title="{{ localize 'ITEMS.new_ability' }}"><i class="fas fa-plus"></i></a>
+        {{/if}}
+      </h4>
+      <ol class="list-item">
+        {{#each totem_abilities as |item id|}}
+        <li class="item flexrow" data-item-id="{{item._id}}">
+          <div class="item-name" style="flex:4;">
+            <a class="item-control item-edit" data-action="edit" data-item-id="{{item._id}}" title="{{ localize 'UI.effect_edit' }}">{{item.name}}</a>
+            <span class="hexa" title="{{ localize 'VERMINE.level' }}">{{item.system.level.value}}</span>
+            <span title="{{ localize 'VERMINE.learning' }}">{{item.system.learn.threshold}}/{{item.system.learn.hindrance}}</span>
+          </div>
+          <div class="item-controls flexrow">
+            {{#if @root.isEditMode}}
+            <a class="item-control item-delete" data-action="delete" data-item-id="{{item._id}}" title="{{ localize 'UI.effect_delete' }}"><i class="fas fa-trash"></i></a>
+            {{/if}}
+          </div>
+        </li>
+        {{/each}}
+      </ol>
+    </div>
+
     {{!-- Specialties --}}
     <div>
       <h4>
diff --git a/templates/item/item-vehicle-sheet.hbs b/templates/item/item-vehicle-sheet.hbs
index 97e639b..e28fa38 100644
--- a/templates/item/item-vehicle-sheet.hbs
+++ b/templates/item/item-vehicle-sheet.hbs
@@ -1,23 +1,64 @@
 <div class="{{cssClass}}">
-{{> "systems/vermine2047/templates/item/partials/header.hbs"}}
+  {{> "systems/vermine2047/templates/item/partials/header.hbs"}}
 
+  <section class="sheet-body">
+    {{> "systems/vermine2047/templates/item/partials/traits.hbs"}}
 
-	<section class="sheet-body">
-		{{> "systems/vermine2047/templates/item/partials/traits.hbs"}}
+    <section class="vehicle-fields">
+      <h3>{{ localize "VERMINE.vehicle_specs" }}</h3>
 
+      <div class="flexrow">
+        <div class="resource align-center flexcol">
+          <label class="resource-label">{{ localize "VERMINE.kind" }}</label>
+          <select name="system.kind" data-dtype="String">
+            <option value="vehicle" {{#ife system.kind "vehicle"}}selected{{/ife}}>{{ localize "VERMINE.kind_vehicle" }}</option>
+            <option value="mount" {{#ife system.kind "mount"}}selected{{/ife}}>{{ localize "VERMINE.kind_mount" }}</option>
+          </select>
+        </div>
+        <div class="resource align-center flexcol">
+          <label class="resource-label">{{ localize "VERMINE.distance" }}</label>
+          <div class="hexa"><input type="number" name="system.distance" value="{{system.distance}}" data-dtype="Number" /></div>
+          <span class="unit">km</span>
+        </div>
+        <div class="resource align-center flexcol">
+          <label class="resource-label">{{ localize "VERMINE.speed" }}</label>
+          <div class="flexrow align-center">
+            <input type="number" name="system.speed.cruise" value="{{system.speed.cruise}}" data-dtype="Number" />
+            <span>/</span>
+            <input type="number" name="system.speed.top" value="{{system.speed.top}}" data-dtype="Number" />
+          </div>
+          <input type="text" name="system.speed.topDuration" value="{{system.speed.topDuration}}" placeholder="{{ localize 'VERMINE.speed_duration_ph' }}" />
+        </div>
+      </div>
 
-		<div class="flexrow">
-			<div class="resource flexrow align-center">
-				<label class="resource-label">{{ localize "VERMINE.mobility"}}</label>
-				<div class="hexa">
-					<input type="number" name="system.mobility" value="{{system.mobility}}" data-dtype="Number"/>
-				</div>
-			</div>
+      <div class="flexrow">
+        <div class="resource align-center flexcol">
+          <label class="resource-label">{{ localize "VERMINE.effort_reserve" }}</label>
+          <div class="flexrow align-center">
+            <div class="hexa"><input type="number" name="system.effortReserve.value" value="{{system.effortReserve.value}}" data-dtype="Number" /></div>
+            <span>/</span>
+            <div class="hexa"><input type="number" name="system.effortReserve.max" value="{{system.effortReserve.max}}" data-dtype="Number" /></div>
+          </div>
+        </div>
+        <div class="resource align-center flexcol">
+          <label class="resource-label">{{ localize "VERMINE.mobility" }}</label>
+          <div class="hexa"><input type="number" name="system.mobility" value="{{system.mobility}}" data-dtype="Number" /></div>
+        </div>
+      </div>
 
+      <div class="maintenance">
+        <label class="resource-label">{{ localize "VERMINE.maintenance" }}</label>
+        <div class="flexrow flex-wrap">
+          {{#each maintenanceSkills}}
+          <label class="flexrow align-center">
+            <input type="checkbox" name="system.maintenance" value="{{ this.key }}" {{#if this.checked}}checked{{/if}} />
+            <span>{{ this.label }}</span>
+          </label>
+          {{/each}}
+        </div>
+      </div>
+    </section>
 
-		</div>
-		{{> "systems/vermine2047/templates/item/partials/physicalItems.hbs"}}
-
-
-	</section>
+    {{> "systems/vermine2047/templates/item/partials/physicalItems.hbs"}}
+  </section>
 </div>