Understanding the Inheritance in C-Sharp (C#)

InheritanceClass.cs

using System;

namespace CSharpBeginner
{
	public class InheritanceClass
	{
		public InheritanceClass ()
		{
		}
		
		public static void Main (string[] args)
		{

			Car myCar = new Car ();
			myCar.Make = "BMW";
			myCar.Model = "7531";
			myCar.Color = "Black";
			myCar.Year = 2005;

			Console.WriteLine (myCar.FormatMe());

			Truck myTruck = new Truck ();
			myTruck.Make = "Ford";
			myTruck.Model = "F345";
			myTruck.Color = "Navy";
			myTruck.Year = 2006;
			myTruck.TowingCapacity = 1200;

			Console.WriteLine (myTruck.FormatMe ());

		}
	}

	//Abstrac class which generalizes a Vehicle
	public abstract class Vehicle
	{
		public string Make { get; set; }
		public string Model { get; set; }
		public int Year { get; set; }
		public string Color { get; set; }

		public abstract string FormatMe();
	}

	public class Car : Vehicle
	{
		public override string FormatMe()
		{
			return String.Format ("{0} - {1} - {2} - {3}",
				this.Make,
				this.Model,
				this.Year,
				this.Color
			);
		}
	}

	//with sealed property, other class doesnt uses this class for Inheritance
	sealed public class Truck : Vehicle {
		public int TowingCapacity { get; set; }

		public override string FormatMe ()
		{
			return String.Format ("{0} - {1} - {2} Towing Units",
				this.Make,
				this.Model,
				this.TowingCapacity
			);
		}
	}
}