Bernd Rosemeyer
No major race was held after 1937 as, in early 1938, the popular German race driver Bernd Rosemeyer was killed in a land speed record attempt on a straight section of the Autobahn Frankfurt–Darmstadt (present-day Bundesautobahn 5), at which point the high-speed AVUS was considered too dangerous for the fast Grand Prix race cars. Furthermore, it was to be connected to the growing "Reichsautobahn" network in 1940 by extending it south towards the Berliner Ring, therefore the original hairpin at Nikolassee was demolished and replaced by a junction. A planned banked south turn was never built; the cleared grounds in the Grunewald forest were used as a proving ground ("Keerans Range") by the American occupation forces after World War II.