The 2012 Aston Martin DBS is available as a 2-door, 2-seat coupe. Starting at $275,461, the 2012 Aston Martin DBS Base Coupe is powered by a 6.0L , 12 -cylinder engine mated to a manual transmission that returns an EPA estimated 11-mpg in the city and 17-mpg on the highway. The top of the line 2012Aston MartinDBSCarbon Black Convertible , priced at $ 296,387 , is powered by a 6.0L , 12 - cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 18-mpg on the highway.