I bet your car show photos don't have aircraft carriers as a background!
I dig the above picture's aspect of implied off roading capability.. maybe a Humvee can climb a steeper angle, etc etc, but the Humvee will never do it with the inherent cool factor of a '41 dualie Dodge!
The other two powerwagons I found in the past couple of months: http://choosingscars.blogspot.com/search?q=powerwagon