Duesenberg Automobile & Motors Company, Inc. was an American racing and luxury automobile manufacturer founded in Indianapolis, Indiana, by brothers Fred and August Duesenberg in 1920. The company is known for popularizing the straight-eight engine and four-wheel hydraulic brakes. A Duesenberg car was the first American car to win a Grand Prix race, winning the 1921 French Grand Prix. Duesenbergs won the Indianapolis 500 in 1922, 1924, 1925 and 1927. Transportation executive Errett Lobban Cord acquired the Duesenberg corporation in 1926. The company was sold and dissolved in 1937. Fred and August Duesenberg began designing engines in the early 1900s, after Fred became involved with bicycle racing. The brothers designed a vehicle in 1905, and they formed the Mason Motor Car Company in 1906 with funds from lawyer Edward R. Mason in Des Moines, Iowa. F.L. and Elmer Maytag acquired a majority stake in the company and renamed it the Maytag-Mason Automobile Company until they sold their stake in 1912. The Duesenberg brothers then moved to Saint Paul, Minnesota, where they established the Duesenberg Motors Company in 1913. Eddie Rickenbacker drove the first Duesenberg-designed vehicle to race at the Indianapolis 500 in 1914, placing tenth. During World War I, the Duesenbergs designed and built aircraft engines in Elizabeth, New Jersey. In 1919, the brothers sold their Saint Paul factories. In 1920, the Duesenberg brothers relocated to Indianapolis, Indiana, where they founded the Duesenberg Automobile & Motors Company, manufacturing the Duesenberg Model A. The brothers assumed engineering roles after signing over the naming rights and patents for Duesenberg engines to promoters Newton E. Van Zandt and Luther M. Rankin. The first ModelA was commissioned by Hawaiian businessman and politician Samuel Northrup Castle. The car had a straight-eight engine that output 88 horsepower, the largest engine in a commercially available vehicle at the time, and was the first to have hydraulic brakes on all its wheels.