2007 Jeep Grand Cherokee Laredo Flex Fuel 4 Door 4wd 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.

2014 Jeep Grand Cherokee

Jeep appears to have nailed it this time. After two decades of assembling its Grand Cherokee sport utility vehicle, the American automaker has finally delivered a world-class off-roader capable of taking on everything in its segment - and more - with a high likelihood of coming out on top.
And if you drove last year's model, it's time to climb behind the wheel again as Jeep has significantly updated the SUV for 2014 with a bold new exterior appearance, an upgraded interior with enhanced electronics and a new transmission that completely transforms the way it drives.
We recently spent a full week with a dark blue 2014 Jeep Grand Cherokee Overland 4x4, a well-optioned model fitted with the standard gasoline-fed V6. While it didn't have the punch of the range-topping V8-powered SRT8, or the fuel-sipping economy of its new EcoDiesel sibling, the high-volume variant left us quite impressed.

The origins of the Jeep Wave | The Exposition

Jeep culture is tight-knit community of passionate enthusiasts with plenty of interesting stories and traditions, like the Jeep Wave. But how did the Jeep Wave start? Episode 2 of The Exposition looks at some theories behind the origin of this driving ritual. Show full video transcript text [00:00:00] Get behind the wheel of a Jeep, and you'll hopefully notice the other Jeep owners waving at you as you pass by. It's kind of cool actually, but one thing we couldn't help wonder is, where and how did this wave start? If you've never heard of the Jeep Wave, don't worry, you're not alone. For example, my friend James - that's James. Back in 2013 he bought his first Jeep. Like many new young Jeep owners, he had no idea about the wave. He quickly caught on, though. [00:00:30] So where did it start? Oddly enough, I was only able to find three pretty convincing theories. Theory One - The wave started in WWII as a way for soldiers to acknowledge each other while driving by on patrol. Theory No. 2 - The wave began after the war. Which also makes sense. Since civilian Jeep owners were most likely returning veterans who already appreciated the car, the wave was a way to acknowledge each other's service. [00:01:00] Theory No. 3 is the wave started much later, in the 70s when off-roading really took off. Kind of a way to salute a kindred spirit out looking for adventure. Now, there is an unspoken rule of who waves first. The rule is, the younger Jeep always salutes the older one. Or if you have a stock Jeep you must wave to a modified Jeep first. These are interesting theories, but one thing's for sure, the Jeep wave is a unique tradition. The next time you drive a Jeep, be sure to wave as you pass another by. Related Video: Jeep Automotive History Ownership SUV Off-Road Vehicles Classics Videos