2007 6-Door Ford F-150 "Tough Box"
Recent photos of Ford F-150 prototypes didn't capture anything as wild as this pickup - a super long wheelbase extended cab with six, count 'em, six doors!
Two side-access doors have been added to this mule's cargo box, immediately behind the cab. It's difficult to tell though what exactly the doors open to, or, rather, into. One of the photographs shows what looks to be a lock box lined-up flush with the extra portals. If so, the enclosed storage area might serve the dual purpose of protecting groceries and tools while helping to stiffen the truck's body, given the extra length and bed cutouts.
This isn't the first time we've seen such an idea. As recently as 2003 there was Chevrolet's Cheynne Concept Pickup that featured two side-access doors granting easy access to its open bed. The Cheyenne also bristled with all sorts of side-box storage options, but not a dedicated trunk like this mule. And if you go back far enough you'll also encounter the 1961 Corvair Rampside pickup that offered its owners a fold-down bedside ramp to allow all sorts of payload to be rolled or carried into the back.
It's interesting that Ford is running such a mule around without side cammo covering the rear doors. It's likely the Blue Oval Boys are out to hear what you have to say about a 6-door pickup!
For your comparison and enjoyment, here are some photos we took of the Cheyenne back at the 2003 North American International Auto Show.