Here is an interesting comparison test between the 6x6 version of the Mercedes G63 AMG and the four-wheel version of the high-performance German SVU. Both versions of the Mercedes G63 AMG are powered by the same 5.5-liter V8 biturbo engine, which develops 544 hp and 760 Nm of torque. However, the G63 AMG 6x6 weighs 3,850 kilograms, which is a lot more than the weight of the 4-wheel model. Out guess is that the G63 AMG 6x6 is going to do a lot better on the off-road part of the test, while the standard G63 AMG is going to come on top on the public roads.