2006 Jeep Wrangler X on 2040-cars

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Here's what it'll take to build a Jeep Grand Cherokee Hellcat

Let's get one thing straight: We want a 707-horsepower Grand Cherokee Hellcat to happen. Badly. The latest report from Motor Authority is encouraging; the bonkers SUV supposedly has a codename, Project K, and has been given the green light for production. Fingers crossed. You might be wondering why the Trackhawk isn't already a thing. Hellcat engines exist, SRT Grand Cherokees exist, so just combine the two, right? It's not quite that easy. Here, we outline what needs to happen, why it should be the quickest Hellcat vehicle out there, and why it won't come anywhere near 200 miles per hour. How To Build A Hellcat Jeep The first engineering problem is feeding the air-intensive beast that is the 6.2-liter supercharged V8. The first engineering problem is feeding the air-intensive beast that is the 6.2-liter supercharged Hellcat V8. Breathing is important on two counts: pulling in enough air for the combustion to put out 707 hp, and then cooling the various heat exchangers once the engine is up to temperature. Dodge did it with the Charger and Challenger, it can do it with the Jeep. This is one place where the Grand Cherokee's larger frontal area might be a boon, as it gives the engineers more surfaces through which to suck air. Once you generate the 707 horsepower and 650 pound-feet of torque, it has to get to the wheels somehow. Jeep's current SRT all-wheel-drive system will at least need some beefing up to handle the torque. It could require a more complete re-engineering. We at least know the ZF-supplied eight-speed auto, used in the Dodge Hellcat models, is up to the task. The Hellcat engine should fit in the Grand Cherokee, as it's about the same size as the 6.4-liter currently in SRT Jeeps, but the Hellcat is taller because of its supercharger. The hood may need to be raised or at least resculpted for clearance, as well as to address those cooling needs. Quicker Than Everything, But Not Faster 200 mph? We're skeptical, from both a physics standpoint and a legal one. A reminder of the quick/fast distinction: quick is acceleration, fast is road speed. The Jeep's all-wheel drive will help put the Hellcat engine's power to the ground in a more manageable way than the Charger and Challenger do through just the rear wheels. That means better acceleration times than the Dodges (11.0 seconds in the quarter-mile for the Charger Hellcat, 11.2 for its Challenger sibling).

Chrysler accelerates Jeep recall repairs from 2018 to March

You may remember that Jeep's unusual fix for this recall involves fitting a trailer hitch.
The recall of about 1.5 million models of the 2002-2007 Jeep Liberty and 1993-1998 Grand Cherokee over fuel tanks may finish far sooner than originally estimated. In a new filing from Jeep's parent, Chrysler Group, with the National Highway Traffic Safety Administration, the company says that it can complete the repairs for the affected vehicles by March 2015, much sooner than the previous estimate of sometime in 2018. Jeep predicts the total cost of the campaign will be around $151 million.

Jay Leno rides high in Fab Fours Legend

Jeep showcased some pretty awesome concepts at its Easter Safari in Moab a few days ago, but few if any of them were quite as extreme as what's rolled in to Jay Leno's Garage for this latest video installment. It's called the Legend, and it was made by aftermarket bumper manufacturer Fab Fours to demonstrate its capabilities. It's obviously based on the Jeep Wrangler, but it's riding high on 50-inch tires with a jacked-up monster truck suspension, giant fenders, a chopped-down red-tinted greenhouse and something its creators call a "grumper" that integrates the bumper into the grille. Or vice versa. Though most of the oily bits have carried over from the production model, it's hardly what you'd call "practical," but it's sure to turn a lot of heads... even one as massive as Jay's. Related Video: