1999 Jeep Grand Cherokee Limited Quadra Trac 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.

Chrysler highlights Mopar lineup for SEMA

SEMA is all about aftermarket parts, and in Auburn Hills that all comes down to one name: Mopar. After having previewed its lineup for this year's Vegas tuner expo earlier this month, Chrysler has now revealed what may not quite be its full dossier of modified show cars, but a good portion of them.
All told Mopar is preparing 20 vehicles for display at SEMA this year. Among them you'll find the Ram Sun Chaser, a 1500 Quad Cab show truck kitted out in two-tone orange and black paint, a roof rack for surfboards, onboard shower and convertible tailgate. The white Fiat 500L is called the Adventurer and is modified for a more rugged look that could hint at the upcoming crossover version. The Jeep Cherokee Trail Carver upgrades on the Trailhawk package with everything from roof basket to rock rails. To counterbalance the off-roaders, there's also a modified Chrysler 300S with a deep black paint job, special grille, Varvatos-edition wheels and more.
All four concepts details so far have Katzkin interiors as well, and there's also an unspecified Dodge Durango with a storm-trooper look in the gallery above. But for more details on what Mopar has installed on the Ram, 500L, Cherokee and 300, you'll want to delve into the press release below.

LA-bound 2014 Jeep Wrangler special edition gives us the Willys for $25,795

The Jeep Wrangler might be the reigning king of special editions, but with sales records being broken almost all year, this plan is obviously resonating with buyers. Joining new models like the Dragon Edition and Polar Edition, the 2014 Jeep Wrangler is adding a new Willys Wheeler Edition to pay homage to Jeep's military heritage.
Getting ready for its big debut at the LA Auto Show, the 2014 Jeep Wrangler Willys Wheeler Edition is inspired by early Willys CJ (Civilian Jeep) models with exclusive styling and upgraded off-road goodies. Starting with a Wrangler Sport, these upgrades include a Dana 44 rear axle with limited-slip differential and 3.73 gears, along with meaty BF Goodrich KM Mud Terrain tires mounted to the Willys Wheeler's black 17-inch wheels. For more of a classic Jeep look, this model adds a gloss black grille, "Willys" hood stickers and rock rails to protect the side sills. Jeep is also tossing in a D-ring, tow strap and gloves that are all kept in a special carrying bag.
When it goes on sale early next year, the Wrangler Willys Wheeler Edition will start at $25,795 for the two-door model, while the four-door will start at $29,595. There's an official press release posted below, and we'll be sure to have live images of the special-edition Wrangler live from the LA Auto Show floor later this week, so stay close.