The 1947 racing season marked a major postwar return to motorsports around the world. In the United States, the AAA National Championship Car series ran 11 points-paying races from the Indianapolis 500 on May 30 through the Arlington 100, with Ted Horn winning the championship through consistent high finishes, Bill Holland second in points, and Mauri Rose third, highlighted by Rose’s controversial Indy 500 victory. Stock car racing was beginning to organize nationally under the National Championship Stock Car Circuit, with drivers like Fonty Flock winning numerous events, and promoter Bill France Sr. laying the groundwork for what would become NASCAR later that year. In Europe, the Grand Prix/Formula One–style season saw a full schedule of top-level races using the early Formula One regulations, with drivers such as Luigi Villoresi and manufacturers like Alfa Romeo dominating key events, including the Pau, Reims, and Lausanne Grands Prix, providing a foundation for the Formula One World Championship that would officially begin in 1950.
