2006 Jeep Grand Cherokee 65th Anniversary Edition Sport Utility 4-door 3.7l on 2040-cars

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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.

Watch a Cayenne Turbo S, Range Rover SVR, and Cherokee SRT drag race

We live in a weird world where high-performance SUVs could win a 60-mile-per-hour sprint against sports cars from just a few years ago. Here, Top Gear sets up a three-way drag race against the Porsche Cayenne Turbo S, Land Rover Range Rover Sport SVR, and Jeep Grand Cherokee SRT, and the results show just how quickly these high-riding models can cross the quarter mile. The Cherokee SRT is the patriotic choice among the three, but it's down on power in this fight. Meanwhile, the Range Rover's menacing growl sounds the best, and the Cayenne Turbo S has the most horsepower. You'll have to watch the video to see which SUV will win this battle. Related Video:

Chinese Jeep production confirmed with Fiat, Guangzhou agreement

Fiat has just finalized a deal originally set up in January between it and China's Guangzhou Automotive Group to bring Jeep production to China. It remains unclear which models will be built, although we're wagering that it'll be the 2014 Cherokee. What we do know, now, is where production will take place.
According to Automotive News, Guangzhou originally wanted production to take place in its home assembly plant in its namesake city. Fiat has battled to send production to a joint venture facility established between Guangzhou and Fiat in the town of Changsha. The joint facility won out, and now the factory, originally built in 2010 with a 140,000-unit capacity, will see Jeeps rolling out of it.
Currently, the GAC-Fiat factory produces the Fiat Viaggio, a jointly developed product that is closely related to America's Dodge Dart. And while it remains unclear as to which model will join the Viaggio on the assembly line, that model is understood to ride on Fiat's Compact platform. The only Jeep to share those underpinnings is the new Cherokee, so there's not much connecting of dots needed to see why this scenario would make sense.