Hennessey knows a thing or two about making cars go faster. Especially cars that already have a fair amount of grunt in the first place. Take this 2013 Mercedes-Benz G63 AMG G-Wagon that's been loaded with the Texan tuner's HPE700 upgrade kit. With 700 horsepower under the hood the potent SUV was a worthy opponent for a Nissan GT-R on the drag strip. In the first run, Godzilla is running in normal mode. But for the second, the GTR is put in "R" or Race mode.

As you can imagine, the two runs have very different endings.