The 2018 Ford Mustang is available as a 2-door, 4-seat coupe. Starting at $25,680, the 2018 Ford Mustang EcoBoost Fastback Deluxe is powered by a 2.3L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 31-mpg on the highway. The top of the line 2018FordMustangGT Premium Convertible , priced at $ 44,690 , is powered by a 5.0L , 8 - cylinder engine mated to a manual transmission that returns an EPA estimated 14-mpg in the city and 23-mpg on the highway.