After a couple of leaks here and there, the 2011 Porsche 911 GT2 RS has finally been revealed. The new 911 GT2 RS will make its world debut in August at the Moscow Auto Show and will go on sale in the U.S. in October with a starting price tag of $245,000.

Power comes from a 3.6L flat six with twin, variable-geometry turbochargers allowing for a total of 620-hp, up from the 530-hp on the outgoing GT2. Weight has been cut by 154 pounds for a total of 3,020 pounds, allowing the car to have a power-to-weight ratio of just 4.9 lbs per horsepower.

Mated to a 6-speed manual gearbox, the 2011 911 GT2 RS goes from 0-60 mph in just 3.6 seconds and keeps going until it hits 205 mph. Stopping power comes from Porsche Composite Ceramic Brakes (PCCB).

Porsche says that the car lapped the Nurburgring Nordschleife in 7:18, beating the Corvette ZR1 around the famous German track. With that in mind, Porsche says that the 911 GT2 RS is the “fastest and most powerful road-going sports car ever built in the history of Porsche.”

Porsche will limit production of the 2011 Porsche 911 GT2 RS to just 500 units.