namespace App

{

    public class Car : Vehicle

    {

        public string modelName = "Mustang";

    }

​

    public class Vehicle

    {

        public string brand = "Ford";

        public void honk()

        {

            Console.WriteLine("Tuut, tuut!");

        }

    }

​

    public class Program

    {

        public static void Main(string[] args)

        {

            Car myCar = new Car();

            myCar.honk();

            Console.WriteLine(myCar.brand + " " + myCar.modelName);

        }

    }

}