The 245 is a model of the production version, distinguished by the number and design of the roof and side vents, as well as the chimney, compared to the pre-series locomotives. Noteworthy are the particularly precisely manufactured parts and assemblies, such as the solid zinc die-cast frame, etched metal ventilation grilles, the prototypically detailed bogies, and numerous standalone, attached parts like the front handrails. The model features a light change from white to red and is prepared for sound.