Cadillac Series 65s for Sale The Cadillac Series 65 was the brand’s second entry in the mid-priced market for the years 1937 and 1938. Built on the C-body instead of the B-body of the Series 60, this car was a bigger option for a mid-level price. Powered by a big V8 engine, it also had independent suspension for a smoother ride. The popular Cadillac Series 65 was offered to the buying public as a touring sedan for five passengers as well as a convertible. Turn to FossilCars to find one of these classics for your car collection.