The            Opel Blitzbus Ludewig "Aero" (WWII service) was a German            bus of the mid 1930's. It was built by the truck body workshop of            Ludewig Brothers on the chassis of the well-known Opel Blitz 3 ton            truck. The bus had rather elegant exterior lines, and was used as            an express bus for passengers between cities, and also for            propaganda purposes. After the beginning of the Second World War at            least one such car was requisitioned by the army and was used on            the Eastern Front as a transport for Wehrmacht officers.