German aftermarket specialist A.R.T. has been tuning Mercedes-Benz models for over a quarter of a century, and in recent years has specialized in the customization of the marque's SUVs. Its latest project is based on the one of the most extreme SUVs on the market – the G65 AMG. While the sane among us will deem its monstrous 6.0-liter twin-turbo V12 more than sufficient, the madmen over at A.R.T. decided to up output from 612 horsepower to a whopping 749.

Torque has been maintained at an electronically-limited 737 pound-feet while visual upgrades include a custom hood complete with nineteen air holes, plenty of chrome trim and six intimidating fog lights. Strangely, with the new G63 6x6 having broken cover just yesterday, thius is actually only the second most bonkers Gelandewagen we've seen this weekend.