OK, let's invent a new truck concept! It'll be as bold as the Avalanche, but I think more useful. An extended cab pickup that expands to a crew cab. The back panel of the cab would slide back into the bed of the pickup so there's as much leg room as a crew cab. The seats would fold down (somehow) and some panels would pop into place where the gaps are, or have a flexible type material, like on a Jeep or convertible top, that folds out like an accordion. Now the pickup is a short bed with a crew cab. When it's time to haul something, fold the seats up, take out the panels and store them (somewhere) or just let the flexible material fold back up again. Now you have a standard cab long bed pickup. What do you think, should I patent this idea? Obviously, some details need to be worked out.