Delivering even more engine power, lower weight and shorter transmission ratios, as well as upgraded body and suspension components than all previous GT3s, the new Porsche 911 GT3 RS sets the foundation for homologating the race version of the 911 GT3 and will be introduced at the Frankfurt Motor Show September 17-27, 2009. The heart of the new, uncompromising GT3 RS is the power unit. Like the engine featured in the 911 GT3, the naturally-aspirated RS...