The 2007 Nissan Armada is available as a 4-door, 7-seat sport utility. Starting at $43,050, the 2007 Nissan Armada LE 4x4 is powered by a 5.6L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 18-mpg on the highway. The top of the line 2007NissanArmadaLE w/FFV 4x4 , priced at $ 43,050 , is powered by a 5.6L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 18-mpg on the highway.