The 2009 Subaru Impreza is available as a 4-door, 5-seat sedan. Starting at $26,995, the 2009 Subaru Impreza 2.5GT (A4) Sedan 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 24-mpg on the highway. The top of the line 2009SubaruImprezaWRX Premium With Navigation/SIRIUS (M5) Sedan , priced at $ 29,495 , is powered by a 2.5L , 4 - cylinder engine mated to a manual transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.