Philadelphia does not currently host any professional automobile racing, but Philadelphia is in close proximity to Dover International Speedway and Pocono Raceway. Defunct racing facilities in the area include Trenton Speedway, Langhorne Speedway, Nazareth Speedway, and Flemington Speedway. Midget car racing was popular during the 1930s and 1940s; the two major tracks were Yellow Jacket Speedway, which closed in 1950, and National Speedway, which closed during World War II as a result of fuel rationing. Races were sanctioned by the American Automobile Association. In 2005, the Champ Car World Series negotiated with the city to organize a race, but no agreement was reached. Philadelphia has produced multiple winners of the Indianapolis 500, including Pete DePaolo, Kelly Petillo, and Bill Holland. Other notable drivers from Philadelphia include Skip Barber, Al Holbert, Spencer Wishart, and Kirk Shelmerdine. Mario Andretti and other members of the Andretti family live in nearby Bethlehem, Pennsylvania.