73 years was his last when Gerard breathed his last. He had produced victorious cars for Ayrton Senna and Jackie Stewart.
His career began with Matra in the 1960s which was the junior categories. The car in which Stewart won the F1 World Championship in 1969 was also designed by him. It was an MS80 which he had designed. Matra was succeeded the following decade at Le Mans. Marque had 24 hours wins straight over the period of 1972- 74.