The 2004 Subaru Impreza is available as a 4-door, 5-seat station wagon. Starting at $19,520, the 2004 Subaru Impreza 2.5RS (M5) Sedan is powered by a 2.5L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 28-mpg on the highway. The top of the line 2004 Subaru Impreza WRX (A4) Wagon, priced at $25,120, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway.