The reminder that this has a Hellcat engine comes when you step on the gas to cross a highway, and it lurches forward.
While Trailhawk denotes best-in-class off-road capability, Trackhawk denotes best-in-class speed.
The Jeep Grand Cherokee is the undisputed fasted SUV.
Scott Tallon, director of the Jeep brand, reminds us that Jeep has a history of high performance vehicles dating back to the 1998 Grand Cherokee 5.9 Limited that did 0-60 mph in 6.8 seconds and was considered an animal.
The first-gen SRT for 2006 did the sprint in 4.8 seconds.
The new torque reserve system makes it possible to hold the engine at 2,200 rpm and develop 6.4 psi of boost standing at the line.
The system prepositions the supercharger while cutting fuel to individual cylinders and manages the spark timing to generate a reserve of torque.Other upgrades go from the standard 20-by-10-inch Titanium finish wheels with Pirelli Scorpion Verdes all-season tires to the lighter forged aluminum wheels with three-season Pirelli P-Zero tires.From behind the wheel you look down at the bulging sculpted hood with dual heat extractors.Essentially, it gets the air moving while you are standing still so it is primed and ready for launch.Use your right foot to push the accelerator to the floor.For comparison, the third-generation Porsche Cayenne S, unveiled recently, increased its horsepower to 440, though the automaker has yet to debut Turbo and Turbo S variants.“This is not just an engine swap of a Hellcat into a Grand Cherokee,” Tallon says.