The Jeep Grand Cherokee Trackhawk is a beast. This muscle SUV packs a tremendous punch, with a supercharged V8 that produces over 720 horsepower. That kind of power is unheard of in the SUV segment, and it allows the Trackhawk to launch from zero to sixty mph in a mere 3 seconds. But it's not just about straight-line speed. The What is the Jeep Tr