The Duesenberg brothers left Elizabeth, New Jersey, at the end of the war to concentrate on development of racecars from a rented space in Newark, New Jersey. In 1919, after the Duesenberg Motor Corporation was sold to John Willys, the Duesenberg brothers finished their work at the company's Minnesota and New Jersey factories and then concentrated on their racing business. In 1920 the Duesenberg brothers moved to Indianapolis, Indiana, where the newly formed Duesenberg Automobile and Motors Company planned to manufacture passenger cars.