<div :class="(badgeBars(car.level.option_value) >= index )?'active':''" v-for="(item, index) in items" :key="item"></div>

    export default {
        name: "wCar",
        data() {
            return {
                items: [
                    'A1', 'A2','B1','B1+','B2','C1'
                ]
            }
        },
        methods: {
            badgeBars(level){
            return this.items.indexOf(level);
            },
        },
        props: {
            car: [Object, String],
            wicon: String,
            index: Number
        },
    };