1986 Jeep Grand Wagoneer on 2040-cars

Auto blog

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.

NHTSA investigating why Jeep recall fix is taking so long

Jeep's saga with the National Traffic Safety Administration and the voluntary campaign to repair 1.56 million vehicles for allegedly unsafe trailer hitches, is getting yet another chapter. The controversy appeared to finally be over in January when the automaker found a supplier for the replacement parts. Nothing is ever that easy, though, and the government regulator is now requesting documents from the company to clarify why the repairs are taking so long to begin.
Jeep parent company Chrysler has until July 16 to submit documents and answers to NHTSA explaining the situation. The regulator claims that despite its compromise to inspect and repair the models with improper hitches in June 2013, Chrysler didn't find a part supplier until December and didn't order the replacements until January. The government agency believes that the first components weren't manufactured until May of this year and vehicles may not actually be repaired until as late as August. According to the report, if the Chrysler doesn't supply what NHTSA is asking for, the agency could "take additional appropriate action as warranted."
Throughout this entire process, Chrysler has asserted that the vehicles met the applicable crash test standards of the time, and it has kept NHTSA abreast of the repair activity. In a recently released statement it said that the regulator analyzed eight rear impact reconstruction tests and found the replacement hitch to be safe. To keep up with the high demand for replacements, Chrysler is working with multiple suppliers, and they are running three shifts, six days a week to get the parts ready as soon as possible.

2014 Jeep Grand Cherokee Diesel and SRT climb onto stage

This is indeed a case of not knowing how much we wanted something until it arrived. We've been big fans of the Jeep Grand Cherokee ever since the new model arrived a couple of years ago, and while the update you see here might seem just a slight refresh, it's actually much more than that.
For starters, the 2014 Grand Cherokee marks the return of a diesel model here in the States, with Chrysler's new 3.0-liter EcoDiesel V6 under the hood, churning out 240 horsepower and 420 pound-feet of torque, mated to an eight-speed automatic transmission. Of course, all of the Grand Cherokee's usual off-road goodies are on hand, with moderate tweaks to make it an even more capable vehicle when the going gets rough. Both the gasoline-fed 3.6-liter V6 and 5.7-liter V8 get the new eight-speed auto, as well.
The high-performance Grand Cherokee SRT also trudges on into the new model year, with very subtle tweaks found underneath the aggressive, slightly redesigned sheetmetal. The 6.4-liter Hemi V8 also gets eight-speed gearing, which Chrysler says will improve not only 0-60 times, but mid-range performance as well. Bring it on, we say.