The Series 60 was Cadillac's entry into the mid-priced vehicle market when it appeared in 1936. It was replaced by the Series 61 in 1939, but a model that was derived from it, the Sixty Special continued off and on through 1993.
The Series 60 was the brainchild of new Cadillac manager, Nicholas Dreystadt. Debuting in 1936, it filled a gaping price gap between the LaSalles and Series 70 Cadillac models. Initially it rode on a 121.0 in (3,073 mm) wheelbase and shared the B body with cars from LaSalle, Buick, and Oldsmobile. This went up to 124.0 in (3,150 mm) in 1937-38.
The exterior featured a new Harley Earl-designed look with a tall, slender grille and split vee-shaped windshield. This body used Fisher Body's new Turret Top one-piece roof and Bendix dual-servo brakes. "Knee-Action" independent suspension, first introduced by Cadillac in 1934, was a welcome novelty for the mid-price market for the time.
Under the hood was the new (less expensive) Monobloc V8. This 322 cu in (5.3 L) engine produced 125hp (93 kW), just 10 less than that in the larger Cadillacs. The Series 60 immediately became the company's best-selling model, making up half of all Cadillacs sold the first year.
The next year, displacement on all Monobloc Cadillacs was 346 cu in (5.7 L). This new engine produced 135 hp (101 kW), more than all V8 Cadillacs of just a few years earlier. The Series 60 was superseded by the Series 61 and disappeared after 1938.