Hennessey Performance has taken a 2018 Jeep Grand Cherokee Trackhawk and tuned it up to where it went from 0 to 100 in just 2.3 seconds and completed a quarter mile in 9.66 seconds, with a top speed of 145 miles per hour.
The Grand Cherokee started out with fair stats, for an SUV. With 707 horsepower, it could complete a quarter mile in the mid-11-second range. Hennessey took the 6.2L Hellcat V8 and gave it an HPE1200 upgrade, which consisted of upgrading the pistons, rods, ported cylinder heads, and long tube stainless steel headers, along with a camshaft upgrade and the addition of a 4.5L supercharger system.
The HPE1200 uses 109 octane unleaded fuel, and combined with a 22 psi of boost performance, I can pump out 1003 horsepower with 892 lb-ft of torque. Hennessey estimates that with an approximate 20 per cent driveline loss, the actual power of the Trackhawk is more like 1200 horsepower and 1100 lb-ft.
Pulling up to a track in a Grand Cherokee might be opening the door to ridicule, but thanks to a unique feature developed by Hennessey, the driver can put all the heat from all those horses into the rear wheel, resulting in a rear wheel burnout, before flipping a switch to return to all-wheel drive for maximum traction and acceleration.
Hennessey’s Trackhawk may look like a soccer mom’s Grand Cherokee, but it’ll show up just about any supercar out there.