Official: Porsche 911 GT3 RS 4.0 released [video]

The GT3 4.0 boasts the biggest hp/liter figure around - 125 hp/liter (92 kW) from a naturally-aspirated 4.0 liter unit.

Source: http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/Tq9HSaa1Fps/official-porsche-911-gt3-rs-40-released-video

Billy Grossi Werner Haas Silvio Habat Larbi Habbiche Ron Hackett Gerhard Haeberle