The 2012 Aston Martin DBS is a 2-door, 2-seat Coupe, available in 4 trims, ranging from the Base Coupe to the Carbon Black Convertible. Upon introduction, the $275,461 Base Coupe is equipped with a standard 6.0L, 12-cylinder, engine that achieves 11-mpg in the city and 17-mpg on the highway. a Manual transmission is standard. The $296,387 Carbon Black Convertible is equipped with a standard 6.0L, 12-cylinder, engine that achieves 12-mpg in the city and 18-mpg on the highway. an Automatic transmission is standard.