A BMW i3 named Victor, barely changed on the outside — but completely converted into a professional driving simulator on the inside. What might sound unusual at first is now a central research instrument for the Department of Traffic Medicine at the Institute of Forensic Medicine (IRM) of the University of Zurich. BMW provided the vehicle free of charge. We handled the technical conversion: The interior of the i3 was completely redesigned and equipped with professional simulator technology. Five projectors create a 270-degree projection screen — for a realistic, immersive driving experience under controlled conditions. The simulator is used to research how factors such as drowsiness, cannabis consumption, or age affect driving ability. Before each drive, electrodes are attached to the subjects' heads to measure brain and muscle activity and draw precise conclusions about their driving state. The IRM's Department of Traffic Medicine conducts over 10,000 driving fitness assessments annually — the simulator aims to place this clinical research on a broader, experimental foundation in the long term. This project exemplifies our expertise in Custom Builds — tailor-made simulator solutions that go far beyond conventional applications.