The 2011 Ford Explorer is available as a 4-door, 7-seat sport utility. Starting at $28,360, the 2011 Ford Explorer Base FWD is powered by a 3.5L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway. The top of the line 2011FordExplorerLimited 4x4 , priced at $ 39,535 , is powered by a 3.5L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 23-mpg on the highway.