Starting from the mid ‘30s an ambitious project to boost the mobility and also the mechanization of Germany Army ended up being undertaken. One of the most important need associated with the program had been the use of a standard armed forces framework able to optimize the x-country flexibility. Among the various version proposed, the medium off road passenger vehicles, four wheel drive, built by Opelwerk and car Union discovered an important diffusion. The Wehrmacht utilized them in various configurations as troop transports, as tow tractors, as well as for artillery reconnaissance. Perhaps not minimum, the Kfz 15, built by Horch ( the Horch Company ended up being an element of the car Union group and Wanderer, Audi and DKW ), was developed to do signals corps duties. Actually it was designed with radio and transmission systems to act as demand and communication mobile post.