2014 Jeep Cherokee Limited 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.

Jeep gives a trio of customs an encore showing at SEMA

While Jeep certainly had some new customs on display at this year's SEMA show, it wasn't afraid to recycle a few that people might have missed from earlier this year. The maker of many beloved off-roaders already displayed the Jeep Cherokee Dakar, Maximum Performance Wrangler and Wrangler Mojo at the 2014 Easter Safari, but they all made it to SEMA for an encore.
Based around the Trailhawk, the Cherokee Dakar (pictured above) imagines an even more off-road-capable version of the crossover. The concept wears a mix of Silver Steel Stain paint with Flame Red graphics and rides on 17-inch wheels wrapped in 33-inch BFGoodrich Mud Terrain tires. To back up the rugged look, the Dakar is fitted with rock rails and skid plates protecting the oil pan, front suspension, fuel tank and other underbody parts. It also sports prototype parts from Jeep Performance Parts, including a lift kit and fender flares.
The Wrangler is one of the paragons of off-roading, and as the name suggests, the Maximum Performance Wrangler concept is meant to be the ultimate example of what it can do. The custom features locking Dana 60 axles front and rear, a 4:1 Rock-Trac transfer case, prototype 4-inch lift kit and 37-inch Mud Terrain tires over beadlock wheels. To stay on the trails well into the night, a bar of LEDs is mounted above the windshield. And finally, the Mopar Blue exterior kind of makes the vehicle look like the world's toughest blueberry.

2015 Jeep Cherokee finds a bit more fuel mileage thanks to stop/start and aero tweaks

Just a year after it burst onto the scene, Jeep has already made a pretty substantial addition to its V6-powered Cherokee, which has proven to be an extremely popular seller so far for the brand, adding a new stop-start system for the midsize, off-road-ready CUV.
The addition of stop-start included a few aerodynamic tweaks to the Cherokee's polarizing body, resulting in a wallet-pleasing increase in fuel economy. According to the EPA, the front-drive, V6-powered Jeep will now return 21 miles per gallon in the city and 29 mpg on the highway, up from 19 city and 28 highway. Four-wheel-drive, V6-powered Cherokees, meanwhile, will now return 20 mpg in the city and 28 mpg on the highway, up from 19 mpg in the city and 27 mpg.
With 271 horsepower, 239 pound-feet of torque and these newly enhanced figures, it's refreshing to see a larger, naturally aspirated engine that is still able to take the fight to today's crop of small-displacement, turbocharged four-cylinders.