Dee ihe na-aga n'ihu maka paragraf a - Site na McLaren iwebata nke ọhụrụ M14A na 1970, M7 nwere naanị otu ọrụ na-arụ ọrụ mgbe Dan Gurney jiri M7A na 1970 British Grand Prix. Privateer John Surtees zụtara M7C ka ọ bụrụ ihe ngwọta ruo mgbe ụgbọ Surtees TS7 ya dị njikere. Ọ gbara ya n'asọmpi Grand Prix anọ, wee laa ezumike nká n'asọmpi atọ ma bụrụ onye nke isii na Netherlands
Ọ dị mma. Ụgbọala ahụ gbanwere aka ya na Jo Bonnier onye jiri ya maka agbụrụ abụọ ọzọ n'afọ ahụ. Ejiri M7D na M14D site n'aka Andrea de Adamich na Nanni Galli, na-eru eru ma na-amalite naanị otu agbụrụ, French Grand Prix ebe de Adamich kwụsịrị na-enweghị ọkwa. Ka ọ na-erule afọ 1971, ọ bụ naanị ụdị Bonnier na M7C ya. O jiri ya mee asọmpi ise ma nwee nsonaazụ kacha mma nke 10 na Italian Grand Prix.