The 2008 Ford Explorer Sport Trac is available as a 4-door, 5-seat sport utility. Starting at $27,490, the 2008 Ford Explorer Sport Trac Limited 4.0L (130B) 4x2 is powered by a 4.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 20-mpg on the highway. The top of the line 2008FordExplorer Sport Trac4.6L (340A) AWD , priced at $ 31,320 , is powered by a 4.6L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 19-mpg on the highway.