public static void Main() { var car = new Car(4, 7, 4); var motor = new Motor(70, 5); var sportCar = new SportVehicle(new Car(2, 17, 0)); var sportMotor = new SportVehicle(new Motor(0, 13)); Console.WriteLine("car: " + car.Show()); Console.WriteLine("-----------------"); Console.WriteLine("motor: " + motor.Show()); Console.WriteLine("-----------------"); Console.WriteLine("sport car: " + sportCar.Show()); Console.WriteLine("-----------------"); Console.WriteLine("sport motor: " + sportMotor.Show()); Console.WriteLine("-----------------"); sportCar.MoveForward(); sportMotor.MoveBackward(); car.MoveForward(); motor.MoveBackward(); Console.WriteLine("-----------------------------------------"); }