The 2007 Nissan Quest is available as a 4-door, 2-seat passenger van. Starting at $24,350, the 2007 Nissan Quest Base is powered by a 3.5L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway. The top of the line 2007NissanQuestSL , priced at $ 27,500 , is powered by a 3.5L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.