tactical information. When he tried out the system for the first time at the 1926 Solituderennen on 12 September 1926, the chief steward demanded angrily that he leave the track, since his 'antics' were irritating the drivers. To Neubauer's explanation that he was the Rennleiter, the organizer responded: 'Are you mad? I'm the Rennleiter (Rennleiter can also mean "race director").

The Mercedes-Benz team was winning races with SS