A great video of Drive’s Chris Harris road testing the new 2013 Mercedes-Benz G63 AMG in the Swabian Hills of Southern Germany. An icon of truck design, the Mercedes-Benz Geländewagen, or “G-Wagen” as it’s commonly called, was first made available to civilian buyers in 1979. For the 2013 the G63 AMG version has been fitted with a brand new 5.5-liter supercharged V8 biturbo engine to produce a jaw-dropping 544 horsepower and 560 pound-feet of torque.