Why pull a camper behind you or drive an oversized motorhome when all you really need to drive is a van? Based on the VW Transporter, the Doubleback Van (£55,000; roughly $87,000) is a deceptively large recreational vehicle, powered by VW's 2.0 TDI engine, and featuring an electric slide-out rear pod that adds almost six feet to the length of the vehicle when stationary, a pop-up roof that lets you walk comfortably around in the living and kitchen areas, and the ability to function as a regular van during those times when you need something a bit more practical.