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Ford claims that its F-250 Super Chief concept, unveiled this month at the North American Auto Show in Detroit, is the world's first vehicle to run on "Tri-Flex" fueling--hydrogen, E85 ethanol or gasoline. The supercharged V-10 is expected to be able to travel 500 miles between fill-ups.
Reflex concept car
Ford's Reflex concept car, whose diesel-electric engine is designed to deliver 65 miles per gallon.
The Reflex concept car's reverse-butterfly doors are designed to provide easy access and exit.