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2010 Hyundai Elantra Blue
2010 Hyundai Elantra Blue will offer increased fuel economy thanks to a host of technical changes. The Elantra Blue is rated at 26 mpg city/35 highway, up 2 mpg in both tests from equivalent 2009 models. The Elantra Blue uses the same 2.0-liter four-cylinder engine as the rest of the Elantra lineup and comes only with a five-speed manual transmission. A revised alternator, lower-friction engine internals, new gear ratios, reprogrammed engine management, and a shift indicator all help the Blue model achieve its higher fuel economy.