In the 1920s, the Reichsbahn introduced the concept of express express transport in order to get the relatively small amount of urgent goods quickly to their destination. Initially, tank locomotives were used, which were actually intended for passenger transport, and they were used to pull short freight trains with a maximum of twelve axles. Since these ran faster than regular freight trains and ran directly to the handling facilities without stopping at platforms, short travel times could be achieved. In order to further optimize this approach, in 1930 initially three four-axle diesel railcars were procured for freight transport from the Wismar wagon factory. These allowed more effective deployment of personnel than steam-hauled trains, could turn back at the terminus when traveling solo without being turned and optionally also pulled a small number of freight cars.
The exterior of the railcars was partly reminiscent of express train baggage cars, with the exception of the jackshaft and coupling rods on the powered bogie. It was powered by a Maybach diesel engine, which initially produced 150 hp and was soon adjusted to 165 hp. A further development of this engine with 175 hp followed later. Power was transmitted through a four-speed mechanical gearbox.
The low price of coal at that time is assumed to be the reason why no more railcars of this type were procured. The three pieces were assigned to the Aachen and Osnabrück depots and labeled as freight cars. In action, it was observed that they sometimes ran alone and sometimes with up to three two-axle cars. After the war, all were taken over by the Bundesbahn and designated as VT 69 900 to 902. In order to continue to have a suitable power output, they got new engines with 210 hp there. Eventually two of them were retired in 1960 and the third in 1962.