The Diesel Driver is reporting that the top winner of the Auto X Prize used an internal combustion engine, lightweight materials, and E85 fuel to create a 4-seater that got just over 100 mpg. The winning entry, built by former BMW dealer Oliver Kuttner, now a real estate investor, has invested millions into his Edison2 Very Light Car.
Other winners were two 2-seaters that got the energy equivalent of 187 mpg.
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