2012 Jeep Grand Cherokee Overland Summit Sport Utility 4-door 5.7l 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.

Jeep's new Chip Away commercial has us hunting Al Pacino's back catalog

Chrysler has done a pretty good job as of late turning its television commercials into pep talks or rallying cries, but for its first ad for the 2014 Jeep Grand Cherokee, it turned to Al Pacino's inspirational speech from the movie Any Given Sunday. In the movie, Pacino's character talks about how football is a game of inches, but the commercial, titled Chip Away, focuses more on the attention to detail that Jeep has exhibited on its updated flagship SUV.
Centering around the newest Grand Cherokee model, the luxurious $47,995 Summit trim level, the commercial shows off some of the hand-stitched leathers and real metal and wood accents found inside the cabin. Check out the new 60-second spot by scrolling below.

Maserati Levante crossover not Jeep based after all?

Maserati has been teasing its crossover project since 2011, which is when it first showed off the Kubang concept (pictured above). Still, the production version, rumored to be called the Levante, remains a complete mystery. The CUV was first rumored to borrow the platform from the Jeep Grand Cherokee, but new rumors indicate that the Italian, luxury crossover might actually take the underpinnings from the Quattroporte and Ghibli.
In a brief interview, Maserati CEO Harald Wester told CNN Money that the Levante wouldn't use Jeep's platform. Motor Trend spoke with an unnamed Maserati engineer who confirmed the rumor. Officially, the company says that no decision has been made.
We can add this to another long list of rumors about the Italian CUV. It was originally supposed to be built at Chrysler's Jefferson North assembly plant in Detroit. Then, plans were changed to build it in Italy.