The fourth generation of Cadillac Sixty Special was introduced for the 1950 model year. The Sixty Special continued to be one of Cadillac's top models, based on the Cadillac Series 62. The fourth generation Sixty Special was fitted with a 5.7L V8 engine, and was offered exclusively as a four door sedan. Production of the 4th gen Sixty Special continued until 1953 and was replaced by the Fifth Generation Cadillac Sixty Special.