2012 Jeep Grand Cherokee Srt8, Awd, Nav, Hs, Cs 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 Grand Cherokee in headliner fire probe

The National Highway Traffic Safety Administration is launching an investigation into 146,000 Jeep Grand Cherokee SUVs from the 2012 model year, The Detroit News reports. This comes as the result of the government safety agency receiving three complaints from owners who cited fires inside the Jeep's cabin.
According to the report, NHTSA says:
"The customers reported a burning odor and visible smoke coming from the headliner while the vehicle was being driven. This was followed by flames from the headliner itself. Customers lowered the windows in an effort to clear the smoke but this increased the fire's intensity. All three vehicles had to be extinguished with a fire extinguisher or by the fire department as they continued to burn after the vehicle was turned off."

Jeep team takes a field trip to Wagonmaster; researching next Grand Wagoneer?

They have the very best intentions of rolling out a seven-passenger vehicle.
Wagonmaster has made a name for itself restoring and selling factory-perfect Jeep Grand Wagoneer models, bridging the gap between when the last production machine rolled off the line in 1991 and present day. The company's efforts haven't gone unnoticed. The entire Jeep product planning team took a little field trip to the company's facility in Kerrville, Texas back in December, and they weren't just there to take in the sights. According to owner Leon Miller's son, Chip Miller, the Jeep team was there to do research for the successor to the Grand Wagoneer throne.