The 2004 Ford Mustang is available as a 2-door, 4-seat coupe. Starting at $34,860, the 2004 Ford Mustang SVT Coupe is powered by a 4.6L, 8-cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 24-mpg on the highway. The top of the line 2004 Ford Mustang GT Premium (180A) Convertible, priced at $29,185, is powered by a 4.6L, 8-cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway.