By the numbers

April 2, 2010 at 1:32AM

35.5 mpg

Carmakers' new cars and light trucks collectively must average this fuel economy by 2016. That's up nearly 10 miles per gallon from the current average.

30 percent

Expected reduction in carbon dioxide emissions and other heat-trapping gases from 2012 to 2016 as a result of the program

Up to $1,000

Cost increase in new vehicles expected under the new rules

$3,000

Savings for the owner of an average 2016 car over the life of the vehicle

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