To be clear, Texas-tuner Hennessey’s military-spec Warkhawk Jeep pickup is more tactical defense machine and less suburban family hauler. But in our view, this beast would make the ultimate ...

Hennessey Performance Engineering has created an HPE650 package for the Jeep Grand Cherokee SRT fitted with the 6.4-liter Hemi engine. When it leaves the showroom floor it has 470 horsepower and ...