The new Porsche 911 GT3 RSR will be the racing edition of the racing edition of the RS … yep. The extra R means that the 4L engine will produce 455hp instead of 450 horsepower, create more down force, and handle better because of stiffer suspension. In Germany, the RSR will cost 410,000 euros before taxes. Also the current 2010 models can be upgraded with an official kit.
More Info: 2011 Porsche 911 GT3 RSR Auto Debut