In 1939, the Styling Division, under Earl's instruction, styled and built the Buick Y-Job, the motor industry's first concept car. While many one-off custom automobiles had been made before, the Y-job was the first car built by a mass manufacturer for the sole purpose of determining the public's reaction to new design ideas. After being shown to the public, the Y-job became Earl's daily driver. It was succeeded by the 1951 General Motors Le Sabre concept car.
