The common man can't afford an ultra-sexy car like the 2013 SRT Viper GTS, now available for download in Forza Motorsport 4. A vehicle like the Viper is the equivalent of car porn on wheels, loaded with elegant curves and 640 horsepower under the hood.

Still, anyone can play Forza 4 and download this DLC pack for the Viper free of charge, but will have to dole out in-game credits or car tokens to obtain this beast in career mode.
http://www.joystiq.com/2012/06/23/20...4-as-free-dlc/