Fulltime 4WD, 3 differentials, three differential locks, for wheel steering, independent suspension on all four wheels, I-6 with 50HP @ 4000 rpm.
The vehicle is very similar to the Mercedes G5 - not by accident. The German army had ordered all car manufacturers in 1933 to design a "Einheits-Pkw mit Allradantrieb" or LEPKW , a Uniform Passenger Car with 4WD. All manufacturers had to follow identical blueprints and technical layout. Most were built by Stoewer and Hanomag.
More on who invented 4WD