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Imagine pulling up to a gas station, and rather than being offered the usual choice between regular or premium unleaded, the gas pump instead read "Chardonnay" or "Pinot Noir." Not for you, of course, but for your car! Well, if one new experimental car, called the Lotus Exige 270E Tri-Fuel, ever catches on, this scenario may not be so far-fetched. The specialized Exige is capable of running on an ethanol fuel made from wine that isn't up to drinking grade, or whey, which is also a byproduct of the cheese or chocolate-making process. It was one of several new cars showcased last week at an eco-rally sponsored in part by the Prince of Wales's environmental initiative, Start, according to the Independent . The car can also run on conventional gasoline (just in case you're out of fuel and still miles away from wine country), as well as methanol, a fuel that can be made by extracting CO2 directly from the atmosphere — potentially the ultimate carbon neutral fuel.