The 2006 Ford Explorer is available as a 4-door, 5-seat sport utility. Starting at $32,425, the 2006 Ford Explorer Eddie Bauer 4.0L (240A) 4x4 is powered by a 4.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 20-mpg on the highway. The top of the line 2006FordExplorerXLT 4.6L (125A) 4x2 , priced at $ 29,425 , is powered by a 4.6L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 21-mpg on the highway.