The 2004 Mitsubishi Eclipse is available as a 2-door, 4-seat coupe. Starting at $18,399, the 2004 Mitsubishi Eclipse RS is powered by a 2.4L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 23-mpg in the city and 31-mpg on the highway. The top of the line 2004 Mitsubishi Eclipse GTS, priced at $24,649, is powered by a 3.0L, 6-cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 28-mpg on the highway.