As Williams had upgraded their lead driver, Jean's compatriot Henri Pescarolo, to a 1971-model March 711 car the team's 1970-specification March 701 was available.
Como Williams potenciara ao seu principal piloto, o compatriota de Jean Henri Pescarolo, cun modelo March 711 de 1971, quedou dispoñible o March 701 coas especificacións de 1970.