JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.angularjs.org/1.2.9/angular.js"></script>
<body ng-app ng-controller="AppCtrl">
    <p>I would like to use ng-repeat with select options and keep the selected car as object and not a json.</p>
    
    <select 
        ng-model="selectedCar" 
        ng-options="car as car.name for car in cars track by car.id">
    </select>
    
    <h3>With ng-options without converting</h3>    
    <pre>{{selectedCar.id}}</pre>
    <pre>{{selectedCar.name}}</pre>
    
    <select ng-model="selectedCar2">
        <option value=""></option>
        <option            
            ng-repeat="car in cars" 
            value="{{car}}" 
            title="{{car.name}}">{{car.name}}
        </option>
    </select>
    
    <h3>With ng-repeat without converting</h3>    
    <pre>{{selectedCar2.id}}</pre>    
    <pre>{{selectedCar2.name}}</pre>
    
    <h3>With ng-repeat with converting</h3>
    <pre>{{carToObject(selectedCar2).id}}</pre>    
    <pre>{{carToObject(selectedCar2).name}}</pre>    
</body>

JavaScript

function AppCtrl($scope) {
    
    $scope.cars = [
        {id: 10, name: 'Ferrari'},
        {id: 15, name: 'Dodge'}
     ]
    
    $scope.carToObject = function(jsonCar) {
        return angular.fromJson(jsonCar);
    }
}