I would love to have the 7.3L PS motor, but they usually go for a whole lot more. I got this one at an incredible deal. I wasn't actually looking that seriously but this van popped up and I couldn't pass it up. The 5.4L is actually fairly gutsy, a lot more so than my poor 3.3L in the X lol. The funny thing is van gets about 15 or 16 MPG cruisiing on highway with three or four kayaks on top and a week worth of stuff inside. Our X on similiar trips gets about the same.