The 2002 Nissan Altima is available as a 4-door, 5-seat sedan. Starting at $16,649, the 2002 Nissan Altima 2.5 Base (M5) is powered by a 2.5L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 23-mpg in the city and 29-mpg on the highway. The top of the line 2002 Nissan Altima 3.5 SE (A4), priced at $23,149, is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway.