The 2011 Subaru Impreza is available as a 4-door, 5-seat sedan. Starting at $17,995, the 2011 Subaru Impreza 2.5i (M5) Hatchback is powered by a 2.5L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 20-mpg in the city and 27-mpg on the highway. The top of the line 2011SubaruImprezaWRX Limited (M5) Sedan , priced at $ 28,995 , 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 25-mpg on the highway.