The 2005 Nissan Xterra is available as a 4-door, 5-seat sport utility. Starting at $23,450, the 2005 Nissan Xterra Off Road (M6) 4x2 is powered by a 4.0L , 6 -cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 22-mpg on the highway. The top of the line 2005NissanXterraOff Road (A5) 4x4 , priced at $ 26,750 , 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.