/// <summary>
        /// Entry point into console application.
        /// </summary>
        public static void Main()
        {
            VehicleBuilder builder;

              // Create shop with vehicle builders
              Shop shop = new Shop();

              // Construct and display vehicles
              builder = new ScooterBuilder();
              shop.Construct(builder);
              builder.Vehicle.Show();

              builder = new CarBuilder();
              shop.Construct(builder);
              builder.Vehicle.Show();

              builder = new MotorCycleBuilder();
              shop.Construct(builder);
              builder.Vehicle.Show();

              // Wait for user
              Console.ReadKey();
        }