Highlighting the changes to the F-Series for 2007 is the introduction of two new models—the F-150 FX2 Sport and the Harley-Davidson SuperCrew. A host of other subtle improvements include boosting the maximum tow rating to 11,000 pounds, adding a new DVD navigation system and Sirius satellite radio to the options list, increasing the power for the 4.6-liter V-8, and the addition of a 5.4-liter E85 flexible fuel engine to the lineup.