Cars made of strange stuff Cars made of strange stuff.Everyone knows you make cars out of steel – or aluminium, or carbon-fiber composites. But for some, conventional substances just don't satisfy. Some engineers have built cars out of crazy stuff like hemp, paper and foam. Come along for a strange journey to a land of cars that crumble, rustle, stretch and squash. Play-Doh Chevrolet This English city was recently treated to the extraordinary sight of a bright blue life-size Play-Doh replica of the Chevrolet Orlando,when it was parked in the street as a publicity stunt. It took model-makers two weeks to build the car, which broke a world record. BamGoo There's eco-conscious and there's eco-combobulated. The BamGoo definitely falls into the latter category. Japan's Kyoto University is behind this daft single-seater electric car, whose body is made entirely of woven bamboo. Ford's hemp prototype Henry Ford might have had something strange in his pipe when he came up...