 Complete the following phrase:  Matra kept Frenchman Jean-Pierre Beltoise, and New Zealander Chris Amon joined Matra using the Matra MS120B specification version for 1971. Beltoise was in difficulty following the 1971 1000 km Buenos Aires; racing for the Matra sports car team; he was involved in the accident in which Ignazio Giunti died, and Beltoises international racing licence was suspended for some time. Amon won the Non-Championship Argentine Grand Prix and finished fifth in the first round in the 1971 season in the South African Grand Prix. Beltoise returned for the Spanish Grand Prix finishing sixth and Amon finished third. The Monaco Grand Prix was a bad race with both retiring with differential failures. The Dutch Grand Prix saw Beltoise ninth and Amon retiring after he spun off. Then came the French Grand Prix which was Matras and Beltoises home race, with Amon fifth and Beltoise seventh. Next, the 