Implementing Interface 3

//Test interface at Main method
using System;

namespace LearnInterfaces
{
  class Program
  {
    static void Main(string[] args)
    {
      Sedan s1 = new Sedan(60);
      Sedan s2 = new Sedan(70);
      Truck t1 = new Truck(45, 500);

      Console.WriteLine($"The first sedan's speed is: {s1.Speed}, wheels is {s1.Wheels}, and License plate is {s1.LicensePlate}");

      Console.WriteLine($"The second sedan's speed is: {s2.Speed}, wheels is {s2.Wheels}, and License plate is {s2.LicensePlate}");

      Console.WriteLine($"The truck's speed is: {t1.Speed}, wheels is {t1.Wheels}, and License plate is {t1.LicensePlate}");

      //call method
      s1.SpeedUp();
      s2.SpeedUp();
      t1.SpeedUp();

      Console.WriteLine($"Now the first sedan speed is {s1.Speed}");
      Console.WriteLine($"Now the second sedan speed is {s2.Speed}");
      Console.WriteLine($"Now the truck speed is {t1.Speed}");
    }
  }
}