At the French Grand Prix, the earlier chassis was adapted to suit Pescarolo and Beltoise drove the later car, which had modified cylinder heads. Beltoise qualified 17th and finished 10th. Pescarolo started 19th, 0.3secs behind his teammate, and retired after one lap due to clutch problems after a lengthy hold at the start. At the British Grand Prix, Beltoise qualified 23rd and Pescarolo 24th, after ignition, wheel and engine problems. Both were out-qualified by Migault in a P160, in 14th place. In the race, Beltoise finished 12th, three laps behind, and Pescarolo retired on lap 65 with an engine problem.