The American Innovation $1 Coin representing Indiana recognizes the automobile industry. Indiana boasts a long history of innovation in automobile manufacturing and promoting the automobile in American culture. They played a role in the invention, refinement, and manufacture of headlights, rearview mirrors, tilt steering, cruise control, pneumatic rubber tires, and car heaters. Indiana produced a number of auto parts manufacturing companies and automobile producers, including Marmon, Studebaker, Milburn Wagon Works, and Duesenberg.