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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).

2019 Jeep Cherokee First Drive Review | Still the most truck-like crossover SUV

The history of the SUV has been one of ever-increasing refinement, and that arc bends towards carlike forms. It's a trend that even the hardiest of nameplates has succumbed to, including the venerable Cherokee, which for 2014, moved from the solid-axle brick of yore to the shark-nosed, independently suspended crossover of modern-day. That wasn't necessarily a bad thing. We found it to be quite a competitive machine at the time, and one that was plenty capable. But time marches on, and five model years later, Jeep has updated the Cherokee. The polarizing shark nose has been toned down, with all the headlight elements integrated into single units on either side. The hatchback has been revised and now sports a cutout for the license plate. Besides improving the looks at the back, Jeep says it allowed them to expand the rear cargo area to 25.8 cubic feet, an increase of 1.2 cubes, because moving the license plate space allowed them to pull the latch assembly farther out. It should be noted, though, that the Cherokee still doesn't have as much cargo capacity as the new 27.2-cubic-foot Compass. Besides the cosmetic changes, the new Cherokee gets a new engine, a 2.0-liter turbocharged four-cylinder good for 270 horsepower and 295 pound-feet of torque that shares commonality with the Jeep Wrangler and Alfa Romeo Giulia engines. However, it lacks the mild hybrid technology of the Wrangler because of space issues, and it has a cylinder head with two camshafts rather than the Alfa's single-overhead cam design. In addition to the new 2.0-liter turbocharged engine, the Cherokee's old naturally aspirated engines, a 2.4-liter four-cylinder (180 hp, 170 lb-ft) and a 3.2-liter V6 (271 hp, 239 lb-ft), carryover unchanged except for the addition of standard engine start-stop functionality. The question is, can mild changes to the Cherokee keep it competitive in a segment where several rivals have been completely redesigned? In terms of capability, the answer is a resounding, "yes," particularly for the Trailhawk, which in turbocharged guise, has even shorter gearing for its low-range four-wheel-drive setting than before at 51.2:1. Like the previous model, the Trailhawk includes different front and rear bumpers for improved clearance and approach and departure angles. It features a set of skid plates and gets a steel oil pan for protection from obstacles, and the rear axle can be locked for additional traction.

2014 Jeep Compass/Patriot sing their swan songs with a six-speed automatic

Unless the governor, Fiat CEO Sergio Marchionne, gives them a reprieve, the 2014 Jeep Compass and Patriot are expected to meet their makers sometime next year. Should they perish, it's a shame that it would happen just as they've shed the continuously variable transmission that was their major bugbear, and just as the Compass has gotten its best looks yet.
Both will roll with a proper six-speed automatic transmission, courtesy of PowerTech. Noise-resistant gears and tuning by Chrysler boffins should alleviate the unappealing sounds that were given off by the older CVT. Unless, that is, you choose to have either model equipped with Freedom Drive II; the serious off-road package, available on both baby Jeeps, will still come with the CVT. The base transmission on the entry-level Sport trim remains the five-speed manual.
Otherwise, it's minor changes for the Compass, set off by the new 18-inch wheel option, trim pieces around the car and a back-up camera. The Patriot gets seat-mounted airbags, but is carryover otherwise. With their expected demises perhaps a year away, not much has changed otherwise. Engine choices comprise the 2.0-liter four-cylinder with 158 horsepower and 141 pound-feet of torque or the 2.4-liter four-cylinder with 172 hp and 165 lb-ft.