Check this out. Ford and Shelby have teamed up once again, first time since the GT40 and the Shelby Mustangs to make a special edition Expedition with a 500+ hp motor!! It was introduced at SEMA, but it isnt quite a green light yet but most likely will. Read about it here:
http://money.cnn.com/2004/11/05/pf/a..._suv/index.htm