"Wacky Races" and his clean-cut naval officer image. In 1973 he won the 24 Hours of Daytona in a Porsche Carrera co-driven by Hurley Haywood. He then announced his retirement to lead a life as a director of the Jacksonville National Bank, a club tennis player and a speedboat racer out of the Ponte Vedra Yacht Club. Gregg retracted his retirement and won the 24 Hours of Daytona three more times, in 1975, 1976, and 1978. His 1976 Daytona victory in the #59 BMW E9 Coupe Sport Leicht (CSL) "Batmobile" (the first product of what would become the BMW M Motorsport subsidiary) with co-driver Brian Redman is cited as BMW's first major victory on American soil. Gregg won IMSA GTO overall championships in 1974, 1975, 1978, and 1979, giving him six career titles in the class. In June 1980, he was due to compete at the 24 Hours of Le Mans in a 924 Carrera GTS for the Porsche factory team along with fellow American Al Holbert, but was injured near Paris; en route to a practice session for the race, he attempted to overtake an ox cart, but a car pulled out in front of him and, in attempting to avoiding a collision, his car careered into a ditch. Artist Frank Stella was his passenger. When doctors refused to allow Gregg to race his place was taken by Derek Bell. Gregg was given clearance to compete at the Paul Revere 250 at Daytona the following month. His partner, Haywood, who was scheduled to drive for most of the race, soon fell ill while leading, leaving Gregg to fill in, but their Porsche fell back, eventually finishing third. Suffering from double vision, he was soon barred from racing by IMSA. Gregg’s success with BMW was rewarded with an invitation to order a BMW M1 Procar Championship supercar from the factory. The Gregg car Frank Stella painted is cited as the only BMW Art Car not owned by the factory (although "unofficial", Stella was an official art car artist). Gregg’s widow sold the car in 1990; it was donated to the Guggenheim Museum in 1999 and then sold at the Bonhams 2011 Pebble Beach Concours d'Elegance auction for $854,000 to art collector, car collector, and BMW dealer Jonathan Sobel. the car was later sold to renowned BMW car collector Peter Gleeson Death Following his road accident in France on June 10,