Gaston Chevrolet won the 1920 Indianapolis 500 in a Frontenac, but died a few months later in a late-season race in Los Angeles in November 1920; he had already accumulated enough points to posthumously win the championship. In 1921, Frontenac won the Indy 500 again, this time at the hands of Tommy Milton, and the brothers' promising company entered into a deal with Stutz Motor Company. However, the deal quickly went wrong, and Frontenac Motors ended that year.