Hypermiling, lap #1
Hypermiling, lap #1

Hyundai/Kia admitted in November that it overstated the mileage ratings on 900,000 2011-13 vehicles. Six models that it previously rated at 40 miles per gallon, including the 2013 Accent, Veloster, and Elantra, have been reclassified at 37 or 38 mpg. Hyundai is compensating affected owners by picking up the tab for the additional lifetime fuel costs associated with the rating adjustment -- plus a 15% premium. Its total bill could top $100 million.

  @FortuneMagazine - Last updated December 31 2012 09:21 AM ET
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2013 Autos: What's to come

Super-exclusive Ferraris, a Fiat 500 limo, and gas prices through the roof. A look at what the new year may or may not bring to the world of cars.

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