public static void Main()
    {
        MyFirstCar myCar = new MyFirstCar("Toyota", "MR2");

        myCar.Accelerate();

        MySecondCar myMySecondCar = new MySecondCar("Harley-Davidson", "V-Rod");

        myMySecondCar.Accelerate();
    }
    public static void Main()
    {
        MyFirstCar myCar = new MyFirstCar("Toyota", "MR2");

        myCar.Start();
    }