Duesenberg Motors Company (sometimes referred to as "Duesy") was an American manufacturer of race cars and luxury automobiles. It was founded in St. Paul,MN, United States by brothers August and Frederick Duesenberg in 1913, where they built engines and race cars. The brothers moved their operations to Elizabeth, New Jersey in 1916 to manufacture engines for WW I. In 1919, when their government contracts were cancelled, they moved to Indianapolis, Indiana,home of the Indianapolis Motor Speedway, established the Duesenberg Automobile and Motors Company, Inc. (Delaware) and built outstanding automobiles. In late 1926, E.L. Cord added Duesenberg to his Auburn Automobile Company. With the market for expensive luxury cars severely undercut by the Depression, Duesenberg folded in 1937.