DP Motorsport's RSR replica
 

I found this while surfing around. 310 h.p. at 1900lbs.
Sub5Zero |dp Motorsport Offers a Modern Take on the 1973 Porsche Carrera RSR

I like most of it, but some of the details like the sideskirts are kind of ugly. Anyway, it's been discussed in a few threads since it was built a couple years ago. You can do a search on dp motorsport and find more info. Start here:

http://forums.pelicanparts.com/porsche-911-technical-forum/639904-dp-motorsport-lightweight-911-a.html

Saw this car at their workshop in Germany, freaking unbelievable build quality and insane attention to detail. everything including the fuel cell were hand built and modified for the application. Its crazy cool.

can't find the vented bonnet on their site.. want one!