The 2006 Ford F-150 SuperCrew is available as a 4-door, 5-seat regular side. Starting at $35,635, the 2006 Ford F-150 SuperCrew FX4 4x4 SuperCrew Cab Styleside Styleside 5.5' Box is powered by a 5.4LL , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 18-mpg on the highway. The top of the line 2006FordF-150 SuperCrewXLT 4x4 SuperCrew Cab Styleside Styleside 6.5' Box , priced at $ 33,625 , is powered by a 4.6L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 18-mpg on the highway.