Porsche defends GT drivers? title ? 911 GT3 R Hybrid thrills fans

PORSCHE 2010 American Le Mans Series Round 9 in Road Atlanta, USA Road Atlanta, 2rd October 2010 A successful conclusion to the American Le Mans Series season for Porsche: With the Porsche 911 GT3 RSR, Porsche works drivers Joerg Bergmeister...

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