Porsche unveils 918 RSR hybrid race car in Detroit.
https://r-automotive.blogspot.com/2011/01/porsche-unveils-918-rsr-hybrid-race-car.html
Hot off the heels of Porsche's release of the 918 Spyder in 2010 and the 911 GT3 R hybrid, we have the brainchild of both cars. The 918 ...
