A look at the key data of the G 63 AMG 6x6 makes it clear that this model's off-road world begins at a point where anything less than a vehicle with caterpillar tracks would have to capitulate.

The go-anywhere Unimog is perhaps its most recognizable product, but the lineup includes several other heavy-duty trucks. This 6x6 behemoth is its newest creation. Mercedes-Benz Special Trucks is ...