In 2018, someone at Jeep decided that the perfectly reasonable 475-horsepower Grand Cherokee SRT simply wasn’t ridiculous enough. So engineers stuffed the supercharged 6.2-liter V8 from the Dodge Challenger and Charger Hellcat into the Grand Cherokee, strengthened the drivetrain, and sent 707 horsepower to all four wheels.
That's how the Grand Cherokee Trackhawk was born, more or less.