September Pennzoil car pack rolls into Forza 4

The 11 cars now available in September's Pennzoil car pack for Forza Motorsport 4 are all pretty ... slick. For 560 MS Points ($7) you'll get a couple of Vipers, an Alfa Romeo 33 Stradale and a '53 Corvette, just to name a few. The full list of the cars can be seen past the break.

Players that picked up a season pass for the game will have to shell out money for this DLC pack, as the last add-on to be included in the pass launched in April. New Community Monthly Rivals Mode events, including one that features the Pennzoil-sponsored Vipers, accompany this new release.
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• 2013 Viper #91 SRT Motorsport GTS-R

• 2013 Viper #93 SRT Motorsport GTS-R

• 1968 Alfa Romeo 33 Stradale

• 1960 Aston Martin DB4 GT Zagato

• 1958 Austin-Healey Sprite MKI

• 1953 Chevrolet Corvette

• 1965 MG MGB GT

• 1955 Mercedes-Benz 300 SLR

• 1967 Volkswagen Karmann Ghia

• 1983 GMC Vandura G-1500

• 2011 Citroën DS4