2007 Jeep Wrangler Unlimited Sahara Sport Utility 4-door 3.8l 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 dealer buries WWII Willys GP in showroom floor

The Willys MB Jeep earned icon status during World War II thanks to its ruggedness, simplicity and go-anywhere ability. Following the war, it didn't take long for the handy vehicles to be scooped up by the public, and a brand slowly grew around the vehicles that has continued to thrive. Fast-forward to present day, where it's not uncommon for auto dealers to try to grab some of the magic of yesteryear by displaying classic models to connect customers with their brands' proud histories. Now, a Canadian Chrysler Group dealer is taking that notion to the extreme by actually making a vintage WWII Jeep part of its foundation.
Bay King Chrysler in Hamilton, Ontario, Canada, recently completed its new showroom, and the franchise really wanted to show its dedication to the Jeep brand. As dealer principal Jamie Richter tells Autoblog, the inspiration for the Jeep installation came from his brother, who became fascinated with a home that had a glass floor looking down into its wine cellar. The company already had the 1943 Willys MB to display, but it had originally planned to build a jungle gym around it for customers' kids. Now, the classic is literally in the floor as customers enter. Richter tells Autoblog that customer reaction so far has been "fantastic."
It's certainly a novel way to bring people into the showroom, and seemingly a nice nod not only to Jeep, but to the men and women who served in the war. If you want to see more about how the Jeep was actually installed and what it looks like, check out this video.

NHTSA closes investigation into Jeep Liberty fires

The investigation that the National Highway Traffic Safety Administration opened into the Jeep Liberty in October 2013 has been closed. NHTSA received two (!) complaints about fires starting in the driver's door, thought to be caused by the master power window switch. The initial estimate was that 80,000 Libertys could be roped into a possible recall, but according to a report in the Detroit News the agency examined records for 425,000 Chrysler products that used the same window switch, including the Dodge Nitro and Chrysler Town & Country minivan.
After canvassing 265 warranty claims related to the master switches, NHTSA concluded that the rate of fires compared to the "large population of vehicles" was rather low, and that there was no trend pattern behind the few issues it did find. Perhaps with that, and the closure of the trailer hitch investigation, the Liberty can finally rest in peace.