Prototype: DB Regio (DB AG) rail bus trailer cars, road number (VB) 996 257 and 998 069 as the "Bicycle Express" and as the "Ulmer Spatz" / "Ulm Sparrow". Built starting in 1955. Use: In commuter service (branch lines). The cars look as they did around 2008.
Model: These cars go with 16984. The cars have a frame constructed of die-cast metal. They also have an mfx/DCC digital function decoder. Maintenance-free LEDs are used for the interior lighting, which can be controlled digitally. The cars have special operating couplers. Total length over the buffers 174 mm / 6-7/8"