This is not a G63, but it sure offers more. It looks like it'd be terrible, but it's better. You'll get to see in the practical video below.
The 4x4 Squared is impressively quick thanks to Mercedes' new 4.0-liter twin-turbo V8, which pumps out 416 hp in the Euro-spec G500. This is actually a retuned version of Mercedes-AMG's 4.0-liter motor, and it sounds nearly as good as those that come from Affalterbach.
It's sort of amazing that something that looks like this actually works as a street car. It makes the idea of owning a G500 4x4 Squared that much more appealing.