The Cadillac V-12 was renamed the Series 80 and 85 in 1936. The Series 80 and 85 featured a 131″ and 138″ wheelbase respectively. All V-12s were now Fleetwood bodied and had Turret Tops. A total of 901 V-12s were sold in 1936.
In 1937 the Series 80 was dropped leaving only the long wheelbase Series 85. The only significant mechanical changes were the adoption of an oil-bath air cleaner and a pressure radiator cap. Sales were only 478. The Series 85 was discontinued at the end of 1937