The average fuel economy of new cars and trucks sold in 2012 climbed 6 percent to a new record amid high gas prices.
The University of Michigan Eco-Driving Index said for 2012, the average fuel economy of new vehicles purchased was 23.8 mpg, up 1.3 mpg from 2011 and up 2.9 mpg from 2008.
But the fuel economy of vehicles purchased in December was 23.9 mpg, down 0.2 mpg from November, likely reflecting the recent reduction in the price of gasoline, U-M said.
Source
The Detroit News