Beurlys of France finished third at the 1965 24 Hours of Le Mans in a Ferrari 275 GTB winning the GT category in its debut at Le Mans, while Masten Gregory and Jochen Rindt won the race. In April 1966 Surtees and Parkes won the 1,000 kilometer Monza Auto Race. Mairesse and Herbert Mueller of Switzerland came in third in a Ford sports car, two laps behind. In May Mairesse and Mueller drove to victory in the Targa Florio, driving a Porsche Carrera 6. Rain caused considerable attrition as only thirteen of seventy starters finished the race. Mairesse and Beurlys again drove a Ferrari to third place in the 1967 24 Hours of Le Mans. This event was won by the American team of Dan Gurney and A. J. Foyt. Formula One Mairesse was third in the Grand Prix of Europe, 1960 Italian Grand Prix. This was the penultimate race of the 1960 Formula One World Championship. Run at the Autodromo Nazionale Monza, Phil Hill was victorious, with Richie Ginther second, and Mairesse third, a lap down. Mairesse qualified fifth for the 1962 Belgian Grand Prix at Spa. The pole was won by Graham Hill in a BRM. During the event Mairesse and the Lotus of Trevor Taylor dueled for more than an hour, passing and repassing a number of times each lap. Mairesse was cheered heartily by an enthusiastic partisan crowd. The two cars came together at more than 100 miles per hour in the long, sweeping, left-hand Blanchimont turn. Mairesse's car went off to the left, careening into a hillside behind a ditch, and caught fire after flipping over. He was thrown out of his Ferrari and his shoes and the legs of his trousers were torn off. He was conscious, despite numerous scrapes, cuts, and burns. Mairesse was loaded into an ambulance and transported to a hospital, where he was reported to be in good spirits and without any serious injuries. Taylor and Mairesse made contact earlier in the season at the Grand Prix of Brussels. In a race in which only twelve of twenty-one starters finished, Mairesse came in fourth in the 1962 Italian Grand Prix. He was only a car length ahead of Giancarlo Baghetti. Out of Formula One in 1963, Phil Hill predicted a rough future for the Ferrari team. He said there was too much competition between Mairesse and Surtees. Specifically, he commented