This is № 498 of Pilentum's model railroad videos. For years, model railroading or railway modelling has been experiencing a magnificent expansion due to scale model cars that drive automatically on model rail layouts. The trucks we see in this video were built in HO scale. Currently, there are three well-known systems that are used on many European miniature worlds. The newest system is called “Viessmann CarMotion”, the worldwide known system is called “Faller Car System Digital” and the very individual system is called “DC-Car System” by Claus Ilchmann.