​​1962 Aston Martin DB4C Convertible Series IV SS Vantage with Factory Overdrive This 1962 Aston Martin DB4C Convertible Series IV SS Vantage with Factory Overdrive is one of just 70 drop-heads made in total and one of only a handful made with an SS engine. It's almost impossible to find a DB4 drop-head with an SS engine and factory overdrive. This incredibly rare and highly coveted DB4 wears a 25 year old restoration that still shows very well. In the last 25 years, this is the first DB4 drop-head that we've found. Matching numbers and mechanically excellent. A piece of Aston Martin History as well as a prime blue-chip investment. Accompanied by its factory build sheet, this Aston Martin is a must-have for any serious collector.