1997 Jeep Grand Cherokee, No Reserve 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.

2015 Easter Jeep Safari concepts unveiled [w/videos]

A yearly tradition, Jeep has unveiled seven new concepts that will participate in the 49th annual Easter Jeep Safari in Moab, UT, in just a couple of weeks. This event is a sort of mecca for Jeep owners and enthusiasts, and like years past, FCA's off-road brand has prepared a slew of excellent new concepts that use a combination of production and prototype Jeep Performance Parts, from the folks at Mopar. These concepts are far more than just production Jeep vehicles with lift kits and off-road tires, though. What we have here are a number of fully baked, one-off SUVs that show the passion and dedication of Jeep's engineers. The Easter Jeep Safari takes place from March 28 to April 5. Here's a look at what'll be hitting the trails this year. 2015 Easter Jeep Safari Concepts: Jeep Chief View 20 Photos Jeep Chief Arguably the coolest concept of the bunch, this Wrangler-based concept is an excellent tribute to the classic, fullsize Jeep Cherokee from the 1970s. It's painted in a vintage Ocean Blue color, with a white, "French Bread" roof. There's also a custom razor grille (something made famous on the original Wagoneer), removable sides, chrome bumpers, and classic-looking, 17-inch wheels. Inside, there's surfer-inspired pink, blue, and white cloth mixed with leather trim, with more fun details like a Rosewood front passenger grab handle and tiki-look shift handle. Of course, this thing looks to be truly capable off-road, too, with a two-inch lift kit, Fox shocks, Dana 44 axles at the front and rear, and a 3.6-liter Pentastar V6 underhood. 2015 Easter Jeep Safari Concepts: Jeep Staff Car View 27 Photos Jeep Staff Car This one's a proper salute to the Jeep military service vehicles of yore. It's an open-air concept based on the four-door Wrangler, with tons of heritage design cues. It looks old, but we promise, it's totally new. It's got basic steel wheels, a stretched canvas roof, bench seats, a painted steel floor, a built-in cooler that accommodates up to 85 cans, and is painted in an iconic Sandstorm color. When the going gets tough, the Staff Car can handle it with aplomb, thanks to the Jeep Performance Parts two-inch lift kit, Fox shocks, Dana 44 axles, and again, the Wrangler's 3.6-liter V6. 2015 Easter Jeep Safari Concepts: Jeep Wrangler Africa View 16 Photos Jeep Wrangler Africa Here's another take on the Wrangler Unlimited, painted in Desert Tan, but this time powered by a 2.8-liter diesel engine.

2015 Jeep Renegade Sport 4x4 Quick Spin [w/video]

Which is the most entertaining Jeep Renegade you can get? While one might make an argument for the Trailhawk model and its accompanying off-road hardware and consequential go-anywhere ability, that car comes with one glaring flaw – its 2.4-liter engine and nine-speed automatic transmission just aren't very entertaining. Instead, I submit the turbocharged, 1.4-liter base engine and its accompanying six-speed manual, a position that was reinforced after a recent stint behind the wheel of a very basic Sport 4x4. Not only do you get a fair amount of the Trailhawk's off-road ability – the Selec-Terrain system and a 4WD Lock mode are standard, but you'll be without the 20:1 crawl ratio and Rock off-road mode – you'll also enjoy a more dynamically interesting powertrain. Read on to see why the force-induced Renegade might just be the way to go. Driving Notes My first date with the Renegade was on the mostly empty, winding roads of northern California. There, the 1.4-liter turbocharged inline-four with 160 horsepower and 184 pound-feet of torque felt fine – with no traffic and few stoplights along the drive route, it was easy to keep the engine on boil. But this engine isn't as enjoyable in day-to-day suburban traffic. Power arrives suddenly – peak torque comes between 2,500 and 4,000 rpm – and if you don't use it, you lose it. There's not much oomph in the higher end of the rev range. With such a peaky powerband, it's easy to get caught flat-footed if you're not paying attention. Thankfully the manual transmission makes it simple to stay engaged and in the correct gear. The stick-shift is enjoyable to use, with a firm clutch that's easy to modulate and shift action that isn't sloppy or vague. The 1.4-liter engine sounds good. Turn down the stereo, stomp on the throttle, and you'll be treated to a delicious turbo whistle and a smooth exhaust note. I've said it before and I'll say it again: I want Mopar to offer the Fiat 500 Abarth's exhaust on the Renegade. It'd be fun. If you do prefer the stereo, know that the Renegade's standard four-speaker unit is weak. Base models don't offer Bluetooth or satellite radio, but you can add both of those luxuries, two extra speakers, and a five-inch touchscreen for just $695. Not a bad bargain. The Koni frequency selective dampers do an excellent job of managing both small, frequent imperfections (like freeway expansion joints), and the bigger potholes that still haven't been fixed after the havoc of Detroit's winter.