Whakaotihia te rerenga e whai ake nei: Na te whakauru a McLaren i te M14A hou i te tau 1970, kotahi noa iho nga mahi a te M7 i te wa i whakamahia ai e Dan Gurney he M7A i te 1970 British Grand Prix. I hokona e Privateer John Surtees te M7C hei aukati tae noa ki tana ake motuka Surtees TS7 kua rite. I eke ia ki nga Grand Prix e wha, ka mutu i te toru, ka mutu i te tuaono i te
Ko te Netherlands. Na ka huri te motuka ki a Jo Bonnier nana i whakamahi mo etahi atu whakataetae e rua i tera tau. I whakamahia te M7D me te M14D e Andrea de Adamich me Nanni Galli, e tohu ana me te tiimata i te whakataetae kotahi anake, te French Grand Prix i mutu ai a de Adamich. I te tau 1971, ko te momo anake o te momo anake ko Bonnier me tana M7C. I whakamahia e ia i nga whakataetae e rima, a ko tana hua pai ko te 10th i te Italian Grand Prix.