Mario Gabriele Andretti is an American former racing driver. He is widely regarded among the most successful drivers in the history of motorsports. Andretti is one of only three drivers to have won races in Formula One, IndyCar, the World Sportscar Championship, and NASCAR. He has also won races in midget car racing and sprint car racing.

American open-wheel car racing, generally known as Indy car racing, or more formally Indianapolis car racing, is a category of professional automobile racing in the United States. As of 2024, the top-level American open-wheel racing championship is sanctioned by IndyCar. Competitive events for professional-level, open-wheel race cars have been conducted under the auspices of various sanctioning bodies, tracing its roots as far back as 1902. A season-long, points-based, National Championship of drivers has been officially recognized in 1905, 1916, and each year since 1920. As such, for many years, the category of racing was known as Championship car racing. That name has fallen from use, and the term Indy car racing has become the preferred moniker.