The 2005 Subaru Legacy is available as a 4-door, 5-seat sedan. Starting at $21,445, the 2005 Subaru Legacy 2.5i (M5) Sedan is powered by a 2.5L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 23-mpg in the city and 30-mpg on the highway. The top of the line 2005SubaruLegacy2.5GT Limited w/Taupe Interior (A5) Wagon , priced at $ 31,145 , is powered by a 2.5L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 25-mpg on the highway.