Horch PKW self-propelled 2cm FLAK transport and ammunition trailer, provides mobile anti-aircraft and ground support. Vehicle was also called Horch 180 Type 1a Kfz 70, Kfz was German acronym for unarmored civilian transporter, while Type 1a indicated spare wheels were stored on external storage bin compared to Type 1 models which placed spare wheels inside crew compartment to streamline assembly.

In 1939 Polish and 1940 Low-Country/French Campaigns, German noted unhitching a towed-gun for battle was cumbersome. By mounting the gun directly onto the transport platform, momentum of the battle can be preserved.

Horch PKW had differential gear system, thus front and rear axles will automatically articulate in tight turns, but was complicated to maintain and prone to breakdown. One American servicemen noted the German were excellent engineers, but they had a tendency of building monuments instead of practical mass-produced equipments. Horch - en.wikipedia.org/wiki/Horch

Model was custom-built, taking a 1.35th TAMIYA Horch command car and splicing it with a 2cm FLAK30 platform from a 1.35th ESCI Demag halftrack.