Forza Motorsport 4 VIP Members can buy this pack at a discount from the in game marketplace. Forza Motorsport 4 VIP Membership sold separately. Explore the world of Porsche in Forza Motorsport 4! The Porsche Expansion Pack includes 30 new and classic Porsche models for you to collect, race, and customize. Drive your favorite models in brand new Porsche-themed events in both World Tour Mode and Rivals Mode. Collect new achievements as you earn the checkered flag. In-game credits or car tokens required to purchase Porsche models in Career Play.