The 911 GT2 is the fastest and most powerful production road Porsche 911 the company has ever released. Its 3.6-litre horizontally-opposed six-cylinder power unit with biturbo technology develops maximum output of 530 bhp (390 kW) at a speed of 6,500 rpm. Maximum torque of 680 Newton-metres or 501 lb-ft, in turn, is maintained consistently over a speed range from 2,200-4,500 rpm. Acceleration to 100 kmh comes in just 3.7 seconds and the new top sports model within the 911 Series reaches a very jolly top speed of 329 kmh or 204 mph.
Source: Business Week