The 2008 Nissan Sentra is available as a 4-door, 5-seat sedan. Starting at $16,140, the 2008 Nissan Sentra 2.0 (CVT) is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 33-mpg on the highway. The top of the line 2008 Nissan Sentra 2.0S (CVT), priced at $17,170, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 33-mpg on the highway.