All in all, we traveled 1,162 miles in the Nitemare and got 15 mpg. The standard Nitemare package includes what we have already described, plus our truck had the optional F-150 hoodscoop, F-150 4x2 sport suspension, and locking lug nuts. The standard plus the optional equipment costs $18,590. Add that to the Ford MSRP of $26,275 and it's $44,865 without destination.

With my time in the Expedition wrapping up, I started to think about what I would have to say as far as pros and cons, and it was actually difficult to find faults in our EL. With our other long-term test vehicle, the Silverado, the big improvement in the Expedition was the interior. Air-conditioned seats, a user-friendly navigation system, and a dash that looks and fits as though the truck just rolled off the lot, all added up to an interior that will make time behind the wheel fly by. It was only during a long, five-hour drive that the seats began to feel uncomfortable, which was really more like a sign that I needed to get out of the truck, stretch, and take a break from driving. On the few occasions when the third row was needed, passengers climbing past the second row were pleasantly surprised at the amount of room in store for them in the back. The only two complaints about the truck were about the interior, although minor. We really liked the audio system, but the rear-mounted subwoofer was all that third-row passengers could hear without some tinkering with the audio settings. This may or may not be a good thing, depending on who you have sitting back there. Finally, the position of the rear door locks, combined with the fact that they wouldn't always unlock when we parked it, had rear passengers momentarily trapped in the truck. Again, this might not be a problem if you want to get a head start on rear-seat passengers to be first in line at a rest stop.

This is the fourth installment of our long-term coverage of the '07 Expedition. The overall mpg for this period was 14.7.