static void Main(string[] args)
        {
            CarDealer carDealer = new CarDealer();

            int car1id   = carDealer.OrderCar(25000, "dacia", "gri", ECarType.EAuto);
            int car2id   = carDealer.OrderCar(25000, "dacia", "gri", ECarType.EAuto);
            int car3id   = carDealer.OrderCar(25000, "dacia", "gri", ECarType.EAuto);
            int truck1id = carDealer.OrderCar(5000, "man", "grid", ECarType.ETruck);

            carDealer.StockCar();

            carDealer.DriveTest(car2id);
            carDealer.StockCar();

            carDealer.DriveTest(car2id);
            carDealer.StockCar();

            Car soldCar = carDealer.SellCar(car1id);

            Console.WriteLine(soldCar.ToString());
        }