Pedzisa mutsara unotevera: Mujaho wokutanga wa1975 waiva 1975 Argentine Grand Prix uye Donohue akapedza ari wechinomwe. Donohue akarega muBrazil Grand Prix nemhaka yechinetso chokubata. Nhamba
South African Grand Prix yakaona Donohue achipedza ari wechisere. Donohue akasiya Spanish Grand Prix apo iye naAlan Jones (Hesketh) vakadonha mushure mekurova mafuta akadonhedzwa padanho nemotokari yaJody Scheckter (Tyrrell). MuMonaco Grand Prix Donohue akasiya nhangemutange pashure pokunge aita tsaona. Donohue akapedza ari wechigumi nomumwe muBelgium. MuSweden Grand Prix Donohue akapedza ari wechishanu. MuAmerica akapedza ari wechisere muHolland. MuFrench Grand Prix Donohue akasiya nhangemutange nekuda kwekukanganisa kwekutaura.