The 1940 AAA Championship Car season consisted of three races, beginning in Speedway, Indiana on May 30 and concluding in Syracuse, New York on September 2. There was also one non-championship event in Langhorne, Pennsylvania. The AAA National Champion was Rex Mays and the Indianapolis 500 winner was Wilbur Shaw. Schedule and results All races running on Paved/Dirt Oval. Leading National Championship standings References See also 1940 Indianapolis 500 AAA Championship Car season AAA Championship Car 1940 in American motorsport