Tuhia he haere tonu mō tēnei wāhanga - I tīmata te PC1 i te 1974 Canadian Grand Prix me Donohue e tohu ana i te 24th me te 12th. I mutu a Donohue i tana whakataetae me te whakataetae a Penske i te 1974 United States Grand Prix
i whakahaerehia i Watkins Glen i muri i te tohu 14th, kaore i taea te whakaoti i te whakataetae na te ngoikoretanga o te whakamutu o muri.