Fuel economy in the U.S. increased from 22.3 mpg in 2011 to 23.1 mpg in 2012, according to a report by automotive pricing and analysis company TrueCar. It says the increase of 0.8 mpg translates into a reduction in fuel consumption of 348 million gal (1.3 trillion L) and savings at the pump of about $1.2 billion. Including their sub-brands, Honda and Toyota led the way in 2012 with a full 1.0 mpg improvement. No other automaker beat the industry average. Ford and Hyundai/Kia were next best with an improvement of 0.7 mpg, followed by Chrysler at 0.6 mpg, General Motors at 0.5 mpg, and Nissan and Volkswagen at 0.4 mpg.