static void Main(string[] args) { Car newCar = new Car("Mercedes", "C", 2015); newCar.Display(); ecoCar myCar = new ecoCar("Toyota", "Auris", 2010); myCar.Display(); myCar.setFuelConsume(10); myCar.CalculateFuelConsume(100); myCar.Display(); Console.ReadLine(); }