2008 Jeep Liberty Sport 4x4 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.

Jeep Grand Cherokee SRT gets power increase, minor tweaks for 2015

As a brand within Fiat Chrysler Automobiles, SRT may have an uncertain future, but it's pumping out some seriously mean machines anyway. The supercharged Hellcat V8 may be gobbling up most of the headlines with its 707 horsepower, but even the Grand Cherokee SRT is getting some small updates for the 2015 model year.
Most importantly for many enthusiasts, the Grand Cherokee SRT is getting a slight power bump. Don't expect the 700+ hp from the Hellcat, but this SUV sees a modest 5-hp and 5-pound-feet of torque improvement to bring output to 475 hp and 470 lb-ft for its 6.4-liter V8 with an eight-speed automatic. The minor change doesn't change the sprint to 60 miles per hour, clocking in at the same 4.8 seconds, or the tow rating at 7,200 pounds. Still, more grunt is never a bad idea.
Another new addition is the Active Noise Canceling system as a standard feature for this powerful SUV. It adds four microphones around the vehicle and uses the stereo system to nullify extraneous sound. However, Jeep claims that the meaty exhaust note from the V8 still gets through into the cabin for driver enjoyment.

Jeep sets all-time sales record in 2012

Last year was good to Jeep. Chrysler has announced its trail-rated brand set an all-time global sales record in 2012 by moving 701,626 units. That number easily surpasses the previous record set in 1999 when Jeep sold 675,494 models. All told, the brand saw a 19-percent sales increase worldwide over 2011, and much of that swell can be traced directly to the Wrangler. While the Grand Cherokee led Jeep sales, the Wrangler posted record numbers both globally and within the US, moving 194,142 and 141,669 units in each market, respectively.
Meanwhile, the Compass beat its previous global sales record with 103,321 units rolling off of dealer lots. In the US, Jeep sold 62,010 Patriot units, breaking that model's previous record as well. Jeep's impressive performance in 2012 marks the second year in a row the brand has seen double-digit percentage sales increases. Check out the full press release below.