Duesenberg Automobile & Motors Company, Inc. (sometimes referred to as "Duesy") was an American manufacturer of race cars and luxury automobiles. It was founded in Des Moines, Iowa, United States by brothers August and Frederick Duesenberg where they built bicycles and sports cars. The brothers moved their operations to Indianapolis, Indiana,home of the Indianapolis Motor Speedway, in 1913 and built outstanding automobiles. In late 1926, E.L.