On April 20, 2011, Jeep announced that the SRT8 version would be debuted at the
2011 New York Auto Show. According to Chrysler, it is the most powerful Jeep ever built. 0–60 and quarter-mile times time in at 4.7s, 13.4 seconds respectively.
[32]
The Grand Cherokee SRT8 debuted alongside two other vehicles manufactured by
Chrysler Corporation: the
Chrysler 300 SRT8 and
Dodge Charger SRT8, both of which also took a one-year hiatus while the new models debuted.
The new Grand Cherokee SRT8, which started production on July 16, 2011,
[33] is equipped with a 470 hp (350 kW; 480 PS) 6.4 L
Hemi V8 engine. Jeep claims the new SRT8 gets 13 percent better fuel economy than its predecessor.[
citation needed] To keep the gas mileage respectable,[
clarification needed] 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).
In 2014, the Grand Cherokee SRT8 was renamed the Grand Cherokee SRT. Though a line of
SRT Core Edition models were introduced for the
Chrysler 300,
Dodge Challenger, and
Dodge Charger, the Grand Cherokee SRT did not receive this treatment.
