A bunch of 2010 Elantra reviews mention 'engine calibration' changes, and a shift indicator to tell you when to shift for efficiency.
I'm sure that car could easily get 40's and up with slight mods and proper driving. I like it, but they should release an eco-blue version with LRR's, belly pan, and wheel skirts. They could offset the cost by getting rid of the XM satellite radio or something.
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