Kurtis Kraft was an American designer and builder of race cars. The company built midget cars, quartermidgets, sports cars, sprint cars, Bonneville cars, and USAC Championship cars. It was founded by Frank Kurtis when he built his own midget car chassis in the late 1930s. Kurtis sold the midget car portion of the business to in the late 1950s, and the quarter midget business to in 1962.