The 2011 Subaru Legacy is available as a 4-door, 5-seat sedan. Starting at $19,995, the 2011 Subaru Legacy 2.5i (M6) is powered by a 2.5L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 19-mpg in the city and 27-mpg on the highway. The top of the line 2011SubaruLegacy3.6R Limited (A5) , priced at $ 28,295 , is powered by a 3.6L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.