Ray Harroun's six-cylinder Marmon Wasp, along with more than 75 other racing cars are on display in this museum located on the speedway infield. Classics here include the Lotus (1964), the STP Oil Treatment Special (1969), as driven by Mario Andretti, and the Texaco Star (1977), driven by Janet Guthrie, the first woman Indy 500 racer.