2014 Jeep Grand Cherokee Overland 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 defies NHTSA, says it won't recall 2.7M Jeep Grand Cherokee, Liberty models

Facing a possible recall totaling around 2.7 million of its most popular SUVs, Chrysler remains insistent that the 1993-2004 Jeep Grand Cherokee and 2002-2007 Jeep Liberty are safe vehicles. This comes on the heels of a recall request from the National Highway Traffic Safety Administration for these two models due to fuel tanks mounted behind the rear axle, which could possibly be ruptured during severe rear-end collisions, leading to an increased risk of fire. In response to the allegations, Chrysler says that it does not agree with NHTSA nor does it plan on recalling either vehicle.
Chrysler said both SUVs "met and exceeded" the requirements for fuel-system integrity, and cooperated fully with NHTSA since the investigation was opened in 2010. While 15 deaths and 46 injuries have been reported from fires caused by rear-end collisions on these models, Chrysler is claiming that the vast majority of incidents cited by NHTSA were "high-energy crashes," including one where a stopped Grand Cherokee was rear-ended by a tractor trailer going 65 miles per hour.
The automaker wraps up by saying "NHTSA seems to be holding Chrysler Group to a new standard for fuel tank integrity that does not exist now and did not exist when the Jeep vehicles were manufactured." Scroll down for Chrysler's official response to NHTSA, but we're pretty sure this isn't the last we've heard on this issue.

Chrysler Recalls Jeep SUVs For Ignition Switches

The ignition switch defects that engulfed General Motors are now a rapidly growing problem at Chrysler. Chrysler said Tuesday it is recalling up to 792,300 older Jeep SUVs worldwide because the ignition switches could fall out of the "run" position, shutting off the engine and disabling air bags as well as power-assisted steering and braking. That's the same problem that has forced GM to recall more than 15 million cars over the last six months. Chrysler's recall covers 2005-2007 Grand Cherokees and 2006-2007 Commanders. The company said it is not sure exactly how many will be recalled, but said it will notify customers by mid-September. Chrysler said an outside force such as a driver's knee can knock switches out of the "run" position. Engineers are working on a fix. The Auburn Hills, Michigan-based automaker, now part of Fiat Chrysler Automobiles NV, said it knows of no related injuries and only one accident. But it said owners should keep clearance between their knees and keys until repairs are made. Chrysler has now recalled more than 1.7 million vehicles for ignition-switch problems. In June, the company added 696,000 minivans and SUVs to a 2011 recall to fix faulty ignition switches. Those recalls covered Dodge Journey SUVs and Chrysler Town & Country, Dodge Caravan and Volkswagen Routan minivans - which Chrysler made for the German automaker - from the 2007 to 2010 model years. Tuesday's recall is the outgrowth of two investigations opened by U.S. safety regulators last month as part of a broader probe into ignition-switch and air-bag problems across the auto industry. The agency wouldn't say Tuesday whether its investigation could lead to recalls at other automakers. The National Highway Traffic Safety Administration said in June that it was investigating Jeep Commanders and Grand Cherokees after getting 32 complaints that a driver's knee can hit the key fob or key chain, causing the ignition switch to move out of position. The federal investigation is still open. The agency said Tuesday that it is requesting additional information from Chrysler to ensure that its repairs will be effective. The investigations and recalls come after GM bungled an ignition-switch recall of older small cars. GM acknowledged that it knew of the ignition problem for more than a decade but failed to recall the cars until earlier this year, when it recalled 2.6 million small cars such as the Chevrolet Cobalt.