2009 Jeep Grand Cherokee Laredo 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.

Jeep first American carmaker to return to Tokyo show

Despite foreign-brand car sales in Japan declining six percent in the first four months of this year, Jeep sales are up 21 percent in the same period. That could explain why Jeep will be the first the US manufacturer to return to the Tokyo Motor Show after eight years away. Ford, General Motors, and Chrysler walked away during the global crisis that struck after the 2007 show. Jeep will be part of an eight-vehicle, four-brand showcase overseen by Fiat Chrysler Automobiles Japan, the local subsidiary. For the moment, it is the only US brand to sign up - neither Ford, GM, or even Chrysler are committed to attend. Stablemates Fiat, Alfa Romeo, and Abarth will be there, along with 13 other foreign makes, answering the "Technology & Fantasy" theme for this year's event. In total, organizers announced 15 brands from 14 Japanese manufacturers, and 27 brands from 17 foreign carmakers. The show opens to the public from Oct. 30 to Nov. 8. Related Video:

Jeep Renegade gets new duds courtesy of Mopar

In a uncommon move, Jeep has found itself with customized versions of a car we've become quite familiar seeing on auto show floors well before it's actual on-sale date. But that's okay – we're pretty fond of the little Renegade, and we're even more keen to get behind the wheel, something that's scheduled to take place in just a few weeks. The two Renegade models you see here have been blessed with bits and pieces from the Mopar parts catalog. These Jeep Performance Parts and Authentic Accessories will be made available to buyers of the Renegade who want to add some factory-backed custom flair to their rough-and-tumble baby crossovers, whether they plan to stay on the asphalt or head off the beaten path. Starting on the street, the Urban Jeep Renegade doesn't really have any major modifications, its factory-spec bike carrier, mirror caps, grille rings, taillamp surrounds and roof rails in Omaha Orange paint over an Anvil-color base serving more to make it stand out from the crowd than actually offer any additional capability. The interior of the Urban Renegade also gets Omaha Orange highlights to go along with Katzkin leather seats. On the dirtier side of the crossover equation, the Commando Green off-road Mopar-modded Renegade gets concept skid plate, prototype rock rails, rear valance and production roof rails provide some added protection and carrying capabilities. X-shaped graphics mimic the jerry can-style motif of the Renegade's tail lamps. Inside, Commando Green bits again join Katzkin leather. Take a good look at all the images above, and feel free to read more about the Mopar-spec Jeep Renegade models below. Mopar to Showcase Trio of Customized Vehicles at NAIAS 2015 - Mopar display at 2015 North American International Auto Show (NAIAS) in Detroit to spotlight how Mopar parts help customers personalize their rides - Off-road Mopar-equipped Jeep® Renegade makes Trailhawk model of Jeep brand's all-new small SUV even more trail tough using Jeep Performance Parts - Urban Mopar-equipped Jeep Renegade enhances city-sized proportions and versatility of the all-new 2015 Renegade with selections from Jeep Authentic Accessories catalog - Dodge Challenger T/A Concept blends vintage design cues with cutting-edge Mopar performance mods January 9, 2015 , Auburn Hills, Mich.