In 1939 the GM-A body Series F was renamed the Series 60 and the larger GM-B body Series L was renamed either the 6 cyl Series 70 or 8 cyl Series 80. Available in Business or Club Coupes and 2 or 4 door Sedans. In 1940 the Series 60 became the Special, the Series 70 became the Dynamic, the 80 was dropped and replaced by the longer GM-C body Series 90 Custom Cruiser. Convertibles and Wagons were added to the range.