The wholly renewed 2015 Hyundai Sonata is on the verge of launching here in the United States, but it appears there's a bit more to the story first told at the New York Auto Show earlier this year. Hyundai has just revealed the first images and details of the Sonata Eco, a new entry in its midsize sedan lineup that combines a small, turbocharged engine and dual-clutch transmission to achieve an estimated 28 miles per gallon in the city and 38 mpg highway.
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