The Solituderennen motorsport events are held on the 11.4 km Solitudering race track near Stuttgart. The event and the track were named after the nearby Castle Solitude. Motorsports events were held there from 1903 to 1965.
Due to the narrow track, initially mainly motorcycle events were held there until 1956. The track and the pits were widened in early 1957 and sports car racing was staged by the automobile club ADAC.
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