The 2008 Nissan Quest is available as a 4-door, 2-seat passenger van. Starting at $25,640, the 2008 Nissan Quest Base is powered by a 3.5L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 24-mpg on the highway. The top of the line 2008NissanQuestSL , priced at $ 30,240 , is powered by a 3.5L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 24-mpg on the highway.