The 2007 Nissan Frontier is available as a 4-door, 4-seat regular side. Starting at $22,900, the 2007 Nissan Frontier LE (A5) 4x2 King Cab is powered by a 4.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 21-mpg on the highway. The top of the line 2007 Nissan Frontier SE (A5) 4x4 Crew Cab Long Box, priced at $25,350, is powered by a 4.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 20-mpg on the highway.