In the war against the Soviet Union, the rearward railways became increasingly important as supply lines for the combat troops. To defend against the sabotage and partisans the Wehrmacht ran armoured trains drawn by armoured steam locomotives on the railway lines.
Steyr-Daimler-Puch was assigned the task of developing a family of light and heavy armored scout railway vehicles in the winter of 1943. Also included standardized rolling stock for the trains of heavily armored scout cars each driven by its own engine (Steyr air cooled engine, rated at76 hp). The first two heavy armored scout trains were put into service in November 1944.