Photo by: Audi Portal axles on a production vehicle are quite rare. Mercedes has the best-known models, specifically the G500 4×4², the G63 AMG 6x6, and the Unimog. It's worth noting that the ...

The G500 4x4², which makes its debut here at ... take the superior all-wheel-drive powertrain including portal axles from the 6x6 – take away one axle – and blend it all with a newly ...