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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.

Rumor has it the new Grand Wagoneer has been cancelled, but we're not so sure

This just doesn't seem to add up. Autoline Daily is reporting that plans for a new top Jeep, a reimagined Grand Wagoneer to sit above the Grand Cherokee, have been scrapped. The info comes from Auto Forecast Solutions, an industry analyst company. The Grand Wagoneer was expected to use a stretched version of the next Grand Cherokee's platform, but it reportedly won't accept the larger vehicle. The report implies that the next Grand Cherokee will use a version of the current Grand Cherokee's unibody platform, which is about what we expected. The thing is, the current Grand Cherokee shares its platform with the (longer) Dodge Durango, as well as Mercedes-Benz's GLE and GLS SUVs (remember the DaimlerChrysler days?). It's possible the Wagoneer was supposed to be wider as well as longer, and that the Durango's stretch just wasn't enough, but it seems odd that this is just now coming to light. We have already seen sketches of the new Grand Wagoneer, purported to have leaked out of an FCA dealer meeting. Jeep's CEO has discussed the (high) price the new utility would command. It just seems like a lot of thought went into the vehicle already, thought that wouldn't be put forward if someone hadn't looked into the feasibility of actually building it. The report (the one that says the thing has been cancelled) also says FCA might regroup and build the GW as a body-on-frame SUV on the Ram 1500 platform. That also seems unlikely, since this is supposed to be a luxurious, refined vehicle that's nicer than the Grand Cherokee. It would be tough to accomplish all of that with a ladder frame underneath, and it's just not the way the industry is going, let alone the Jeep brand. We'll keep an eye on this one. Related Video: Featured Gallery 2019 Jeep Grand Wagoneer Dealer Leak Spy Shots News Source: Autoline Daily Rumormill Jeep Crossover Luxury

NHTSA closes book on Jeep 'trailer hitch' recall after all

After much debating and hand-wringing, the National Highway Traffic Safety Administration now says it has "no reservations" with Chrysler's plan to recall certain Jeep Liberty and Grand Cherokee models over concerns that their fuel tanks, which are located behind the rear axle, could rupture or leak in the event of a rear impact. The longstanding argument between the two entities saw Chrysler openly defy the Feds after a request to recall 2.7 million units back in June.
Chrysler's "voluntary campaign" will instead see it recall 1.56-million 1993-2004 model year Grand Cherokee SUVs, along with 2002-2007 Liberty models. Affected vehicles will get a trailer hitch installed free of charge, which Chrysler says will provide an additional degree of protection for the fuel tanks in the event of a crash. Jeeps with Mopar-branded hitches or hitches that were installed at the factory aren't affected by this recall.
Chrysler's argument throughout this battle has been that the Jeeps in question are no more susceptible to fires than comparable vehicles from the same time period, a position that NHTSA has seemingly arrived at as well. "Those vehicles performed at a rate similar to their peers. That is the keystone analysis as to whether something poses an unreasonable risk to safety," said outgoing NHTSA boss David Strickland during an interview with the The Associated Press.