Work hardening, stress fractures. They'd want to gut the bodies, then put them through an annealing/tempering cycle or two. Else hydroform body panels to glue and rivet together. OTOH Walmart is showing 53ft van bodies in carbon fiber.
I'd like to see proposals from Del Blanchard, of Myrtle Creek, Oregon and/or Local Motors. Stainless steel jeep bodies with sliding doors and an EV conversion; or LM's Olli autonomous bus reconfigured to an automous mail van, that would carry or follow the postman.
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