The 2001 Nissan Sentra is available as a 4-door, 5-seat sedan. Starting at $11,749, the 2001 Nissan Sentra XE (M5) is powered by a 1.8L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 27-mpg in the city and 35-mpg on the highway. The top of the line 2001NissanSentraCA (A4) , priced at $ 14,899 , is powered by a 1.8L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 26-mpg in the city and 33-mpg on the highway.