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Mustang6G
Just two days after Edmunds reported that the 2015 Ford Mustang would receive Ford's 2.3-liter EcoBoost four-cylinder engine as an Europe-only option, Road & Track has just disputed this bit of info and according to them, "confirmed" that the U.S. will in fact get the 2.3L turbo four. Further, don't bet on it being the base engine, either.
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2015 Ford Mustang Will get 2.3-liter EcoBoost in U.S., and not as base engine