Project dp911 RS 2011 Lightweight. The German tuner DP Motorsports took some extreme measures in transforming a 1973 Porsche 911 into this lightweight widebody model with an RSR-inspired look. Without fuel, it tips the scales at just 870 kg (1918 pounds) thanks to the exterior body panels all being made of carbon fiber. The interior has also been stripped down to reduce the weight and a rollcage has been installed. The engine is a 3.6-liter flat-6 that generates 310 hp (228 kW). A press release and more photos are availabe at Autoblog.