When Aston Martin introduced the Series IV DB4, which was the fourth evolution of the DB4 Base Model, they also debuted a new convertible body style. The DB4 Series IV Convertible was offered alongside the Series IV DB4 Coupe, and was powered by a 3.7L inline six engine that was paired to a 4 speed manual transmission. Only 30 examples of the Series IV Convertible were ever made, with only 19 of them being standard DB4s, while the rest were DB4 Vantage examples.