<P> The new Grand Cherokee SRT8 , which started production on July 16 , 2011 , 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 . 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 ) . </P>
<P> The new Grand Cherokee SRT8 , which started production on July 16 , 2011 , 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 . 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 ) . </P>
when did they start making the jeep srt8
when did they start making the jeep srt8
July 16 , 2011
July 16 , 2011