The Jeep Grand Cherokee Trackhawk is a beast. This muscle SUV packs a massive punch, with a supercharged V8 that produces over 700 horsepower. That kind of power is rare in the SUV segment, and it allows the Trackhawk to blast from zero to sixty mph in a mere 4 seconds. But it's not just about straight-line speed. The Trackhawk is also surprisingl