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I have doubts due to the aerodynamics: Various people on this forum have gone to great lengths with boat tails, belly pans, pizza pan wheels, nose jobs, etc. and got nowhere near 114mpg on the highway at 67 mph. Granted, those folks have heavier cars than Wikispeed, but then once the vehicle is cruising on level ground at highway speed, weight is no longer that big a factor. Aero is. So, when Wikispeed claims 114mpg at 67 mph in a car with open-roof roadster drag, apparently no belly pan, not that great nose or body, etc., I have serious doubts.
I may go by there and offer to buy a gallon of fuel for a road test on I-5 to see exactly how far the car goes. Or doesn't.
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