 Complete the following phrase:  In 1971 Jean took his Motul sponsorship to the independent Frank Williams Racing Cars team, and he drove their March 712M Formula Two car for them at Rouen and Pau. However, on both occasions he failed to finish. He also failed to qualify the car for the Monza Lottery race in June. His involvement with the Williams team gave Jean the opportunity to participate in his home Formula One event that year: the 