The 2011 Ford F-450 is available as a 4-door, 5-seat regular side. Starting at $49,045, the 2011 Ford F-450 XL is powered by a 6.7L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2011FordF-450Lariat , priced at $ 58,090 , is powered by a 6.7L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated