Please note that now it is available on the Marketplace a new expansion pack for Forza Motorsport 3 called "Summer Speed Package" which will add to the game ten cars. The pack costs 400 Microsoft Points and is as always append even from the web . Following the complete list of cars entered.

• 2010 Lotus Evora Type 124 Endurance Racecar
• 2010 Mercedes-Benz SLK 55 AMG
• 2010 BMW Motorsport X6M
• 2010 Morgan Aero Supersports
• 2009 Chrysler Jeep Grand Cherokee SRT8
• 2010 Bertone Mantis
• 2010 Mazda Mazdaspeed 3
• 2010 Ford Fusion Sport
• 2010 Subaru Legacy B4 2.5GT
• 2010 Peugeot 308 RCZ