Kaiser Motors Corporation made automobiles at Willow Run, Michigan, United States, from 1945 until 1953. In 1953, Kaiser merged with Willys-Overland to form Willys Motors Incorporated, moving its production operations to the Willys plant at Toledo, Ohio, where the company continued to build automobiles under the Kaiser marque including the Kaiser Darrin until 1955. Their South American operations continued to build passenger cars well up into the 1960s. The company changed its name to Kaiser Jeep Corporation in 1963.

The Kaiser-Frazer Corporation was an American automobile company. It was founded jointly by industrialist Henry J. Kaiser and automobile executive Joseph W. Frazer. In 1947, the company acquired the automotive assets of Graham-Paige, of which Frazer had become president near the end of World War II. Kaiser-Frazer was one of a few US automakers to achieve success after World War II, if only for a few years. Joseph W. Frazer left the company in 1949, replaced as president by Henry's son Edgar F. Kaiser.