There were many types of buses used by Wehrmacht during WWII, most of them were classic designs with a long bonnet, although some of them has different, more modern layout called COE - cabin over the engine. Both types are also called "bonnet type" and "wagon type". There were popular models like Opel Blitz Omnibus, as well as very obscure ones, built in very limited quantities by small coachbuilders. All of the types were often requisitioned for the war effort. The multitude of different types was a nightmare for repair services back then, and an ocean of different possible modeling projects today.