The 2004 Mustang is a 2-door, 4-passenger family coupe, sports coupe, convertible, luxury sports car, or convertible sports car, available in 10 trims, ranging from the Standard Coupe to the GT Premium Convertible. The 2004 Mustangs closest competitors include the Acura RSX, the Mazda MAZDASPEED, and the Volkswagen New Beetle Convertible. Upon introduction, the Standard Coupe is equipped with a standard 3.8-liter, V6, 190-horsepower engine that achieves 20-mpg in the city and 29-mpg on the highway. The GT Premium Convertible is equipped with a standard 4.6-liter, V8, 260-horsepower engine that achieves 17-mpg in the city and 25-mpg on the highway. A 5-speed manual transmission with overdrive is standard on both trims, and a 4-speed automatic transmission with overdrive is optional. The 2004 Mustang is a carryover from 2003.