Describes Indy race cars and traces the history of the Indianapolis 500 race. Also includes race car drivers such as: Mario Andretti, Michael Andretti, Helio Castroneves, Ralph DePalma, A. J. Foyt, Sam Hornish, Jr., Rick Mears, Louis Meyer, Wilbur Shaw, Al Unser, Jr., Al Unser, Sr. and Bobby Unser.