 Ok, bought the car to two a 7,000 pound travel trailer, compared to a Yukon/Tahoe and selected the Ford since it was 10 grand less expensive and towed more on paper...in practice the twin turbo engine didn't hiccup at all towing the trailer about 3,000 miles from sea level to 7,000 feet.  Gas mileage without trailer at 80 is about 22 on the highway, with the trailer at 65, drops to 15.  Other than that, which I suppose is to be expected when towing a big box that weighs more than the truck, the truck is a hoot.  Great features, options, stupid quick when not towing a trailer.  First Ford I bought since 1978.  If something happened to it I would trot down and buy another one.