Detailed execution in full length scale. Type-specific designed underbody. Baggage car with standard Prussian design V 4 bogies, passenger car with gooseneck bogies. All cars with standard built-in interior lighting with warm white light-emitting diodes (LED). The brightness of the interior lighting can be adjusted for each car. A buffer capacitor is installed in each car to bridge a brief interruption in the power supply. A C4ü passenger car is equipped with rear train lighting and wheel sliders as standard. The rear of the train lights up prototypically in a yellowish white in the direction of travel, and in red on the rear. For this purpose, a firmly defined vehicle sequence is specified. Each seat car is equipped with 10 figures as passengers. There is a figure in the baggage car.