September 16, 1939

Sir Malcolm Campbell trotted out this motorbike for war service

© Press Association

September 3, 1939

Tazio Nuvolari climbs out of his Auto Union after winning the Belgrade Grand Prix

© Unknown

September 3, 1939

Hermann Lang in action during the Belgrade Grand Prix

© Unknown

September 3, 1939

Manfred von Brauchitsch prepares for the start of the race

© Unknown

September 3, 1939

The starting line for the 1939 Belgrade Grand Prix

© Getty Images