 Complete the following phrase:  The season proved to be Cheevers high point in Formula One. He signed with the factory Equipe Renault team alongside Frenchman Alain Prost, both of whom were among the years Championship favorites. Cheever earned four more podiums and 22 Championship points driving the Renault RE30C for the first two races before driving its much better replacement, the RE40, for the remainder of the season. But the teams disappointment after losing both the Drivers Prost and Constructors titles late in the season brought about the replacement of both Cheever and Prost. His best finish for Renault was second in the Canadian Grand Prix at the Circuit Gilles Villeneuve in Montreal, while earlier in the season he achieved his highest career qualifying position when he was second to teammate Prost at the 