Rubuta ci gaba don wannan sakin layi - PC1 ya fara zama a 1974 Kanada Grand Prix tare da Donohue ya cancanci 24th kuma ya gama 12th. Donohue ya yi ritaya daga tseren gidansa da na Penske a gasar Grand Prix ta Amurka ta 1974
An gudanar da shi a Watkins Glen bayan da ya cancanta na 14, ya kasa gama tseren saboda rashin nasarar dakatarwa na baya.