Mezue ahịrịokwu na-esonụ: 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 ọsọ ya na Grand Prix anọ, na-ala ezumike nká site na atọ wee kwụsị nke isii na Netherlands. 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.