​From Wikipedia, the free encyclopedia.   Mario Gabriele Andretti (born February 28, 1940) is a retired Italian American world champion racing driver, one of the most successful Americans in the history of the sport. He is one of only two drivers to win races in Formula One, IndyCar, World Sportscar Championship and NASCAR (the other being Dan Gurney). He also won races in midget cars, sprint cars, and drag racing. During his career, Andretti won four IndyCar titles (three under USAC-sanctioni...