The 2005 Nissan Sentra is available as a 4-door, 5-seat sedan. Starting at $12,900, the 2005 Nissan Sentra (50 State) ULEV (M5) is powered by a 1.8L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 35-mpg on the highway. The top of the line 2005NissanSentraSE-R (CAL) ULEV (A4) , priced at $ 17,800 , is powered by a 2.5L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 23-mpg in the city and 28-mpg on the highway.