NAIAS Detroit 2011: Porsche 918 RSR Review
For full review, visit:
http://www.autoguide.com/auto-news/20...
As rumored, Porsche has revealed a hard-top racing version of its 918 Spider concept at the Detroit Auto Show. Looking absolutely breathtaking and sporting some traditional Porsche motorsports livery, company execs stopped short of confirming it as a car ready to hit the race track.