If you think the weekend was unique, there was a time when they would run car races and a motorcycle Grands Prix on the same day at the same circuit. It was a recipe for disaster and controversy which came to a head in the 1974 West German Grand Prix at the Nürburgring. Car racers wanted unprotected Armco barriers to stop them from crashing off the track. The motorcycle riders rightly wanted those barriers protected by straw bales. The organisers would not supply enough and so the Grand Prix riders, led by MV Agusta team-mates Phil Read and Giacomo Agostini, refused to race.

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