A U.S. design company has created the world's first wooden supercar, which would put both Porsche and Lamborghini in the shade with a staggering top speed of 240 mph, media reported Thursday. The 4.6 meter-long, two-seater "Splinter" car, made from maple, plywood and MDF, has a 4.6 liter V8 petrol engine and a six-speed gearbox. Splinter weighs 1,134 kilograms -- 240 kilograms less than the lightweight Porsche 911 GT3. Despite its power, it will achieve 20 mpg, according to...