The Einheits-PKW Kfz.4 was produced in three different versions (light, medium and heavy unit car) in the period 1936-1943 and delivered to the German Army. The version "Kfz.4" stands for a light Einheits-PKW and served as a troop air defence vehicle with a 7.92 cm twin MG and a special version for the mountain troops with a reduced track width from 1.4 m to 1.25 m. The version "Kfz.4" was produced for the German Army in 1936-1943.