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In page Nürburgring:

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The track was completed in spring 1927, and the ADAC Eifelrennen races were continued there. The first races to take place on 18 June 1927 showed motorcycles and sidecars, and were won by Toni Ulmen on an English 350cc Velocette. The cars followed a day later, and Rudolf Caracciola was the winner of the over–5000cc class in a supercharged Mercedes-Benz "K". In addition, the track was opened to the public in the evenings and on weekends, as a one-way toll road.[1] The entire track consisted of 174 bends (prior to 1971 changes), and averaged 8 to 9 metres (8.7 to 9.8 yd) in width. The fastest time ever around the full Gesamtstrecke was by Louis Chiron, at an average speed of 112.31 km/h (69.79 mph) in his Bugatti.[citation needed]