On April 20, 2011, Jeep announced that the SRT8 version will be debuted at the 2011 New York Auto Show.
According to Chrysler, it’s the most powerful Jeep ever built.

The new Cherokee SRT-8, started production on July-16-2011, being equipped with a 465 hp (344 kW; 461 PS) 6.4 liter Hemi V8 engine. To keep the gas mileage respectable, Jeep has employed a new active exhaust system that lets Chrysler’s cylinder-deactivating Fuel Saver Technology operate over a wider RPM band. Chrysler claims that with the larger gas tank, the SUV can now travel up to 500 miles (800 km) on a single tank, while other sources estimate range to be 450 miles (720 km).