New fuel economy labels for cars and trucks are unveiled

The revised decals, set to be in use by the 2013 model year, are intended to show buyers how a vehicle stacks up against others in its class and the average new vehicle. They will be rated on smog, tailpipe emissions and fuel economy.Federal regulators unveiled new fuel economy labels that could make it easier for new-car buyers to compare fuel-efficient vehicles and gas-guzzlers.

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