2011 Jeep Wrangler Unlimited Rubicon 5.7l Hemi on 2040-cars

Auto blog

Watch this 650-hp Hennessey Jeep Grand Cherokee go from 0-60 in 3.9 seconds

Hennessey Performance Engineering has created an HPE650 package for the Jeep Grand Cherokee SRT fitted with the 6.4-liter Hemi engine. When it leaves the showroom floor it has 470 horsepower and gets from 0-60 miles per hour in 4.8 seconds. When it leaves Hennessey's garage floor after the upgrade it has 650 horsepower - 530 hp at the wheels, according to Hennessey - and gets to 60 mph in 3.9 seconds on its way to running the quarter-mile in 12.6 seconds.
There's more than just a Roots-type supercharger bolt-on, with ported cylinder heads and high-flow headers among the many changes made to the engine. You can watch this pre-2014 facelift silver model prove its spec sheet on the drag strip in the video below.

Hank the Autodog takes a ride in the long-term 2014 Jeep Cherokee

Autoblog readers, meet Hank, my 40-pound, six-year-old Shar Pei and Staffordshire Terrier mix, a combination also known as a Pit Bull. Pit Bulls and car enthusiasts have a lot in common. They're a little intimidating to your average man on the street, but at the end of the day all they want to do is feel the breeze in their ears. Dogs who love car rides are the ultimate enthusiasts, and Hank especially is a canine connoisseur of cars. There is nothing Hank likes more than to hop in and go for a ride. With an owner like me, he has developed refined tastes when it comes to cars. As our long-term Jeep Cherokee is about to leave the Autoblog Garage, and since the weather is warming back up, it's the perfect time to give our Autodog one last spin in his favorite Jeep. We wanted to see what a car ride looks like from a dog's perspective. Luckily, we have a cache of GoPros and plenty of cars on hand to give Hank one last chance to go for a window-down ride. After many pets, treats, and drives around town, we put together this video montage of Hank's best day ever.

2014 Jeep Grand Cherokee gets surprisingly comprehensive update, new diesel power

Traditionally, automotive journalists can be heard muttering something to the effect of "Geeze, it's about time!" whenever a vehicle's midcycle refresh is revealed. As we routinely see and drive new models many months before the public even claps eyes on them in showrooms - and then go on to tweeze apart their minutia in our daily writings - perhaps some impatience is to be expected. With so much exposure to a given vehicle, it's fair to say we tire of most cars and trucks far more quickly than the average consumer.
The alterations are handsome, if not subtle touches from the "If It Ain't Broke" school of design.
Which is why we're pleased to say "Oh, is it time for that already?" when it comes to the 2014 Jeep Grand Cherokee. The current WK2 Grand Cherokee hit the market in 2011 and climbed its way into our hearts with its rugged good looks, go-anywhere capability and surprising refinement. We're not yet tired of its appearance or performance, but even so, we're very glad to see Chrysler giving its flagship Jeep some attention, including a much-anticipated diesel powertrain option and some other economy-minded measures.