The 2016 Aston Martin Vanquish is available as a 2-door, 2-seat coupe. Starting at $287,650, the 2016 Aston Martin Vanquish Base Coupe is powered by a 6.0L , 12 -cylinder engine that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway. The top of the line 2016Aston MartinVanquishCarbon Convertible , priced at $ 320,695 , is powered by a 6.0L , 12 - cylinder engine that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway.