Microsoft have released a new DLC pack for Forza Motorsport 3 today called "AutoWeek Car Show Pack" and obviously draws its name for the International Auto Show that kicks off in Detroit this week. The following cars are included:
2009 Audi RS 6
2010 Ford Shelby GT500
2009 Lotus 2-Eleven
2010 Aston Martin One-77
2010 Porsche Boxster S
2009 Audi R8 LMS Show Car
2010 Pagani Zonda R
2010 Saleen S5S Raptor
2010 BMW Motorsport M6 Coupe