New Porsche 911 GT3 RS. Like its little "quiet" GT3 RS that is powered by a 3.8 6 cylinder but offers 450 horses and 429 against the GT3. The naturally aspirated engine of the game in Stuttgart offers impressive 113 hp per liter of displacement and is mated to a 6-speed manual gearbox. Despite the "high performance", this ensures that Porsche GT3 RS is capable of behaving meekly for everyday use.