The Porsche 911 GT2 RS is the fastest and most powerful road-going sports car ever built in the history of Dr. Ing. h.c. F. Porsche AG, Stuttgart and marks the summit in the 911 range. With power up by 90 hp and weight down by 70 kilograms in comparison with the prior 911 GT2, the new Porsche 911 GT2 RS has a weight-to-power ratio of just 2.21 kilos per horsepower, by far the best power/weight ratio in its class.