This is an interesting piece that shows how misleading Corporate Average Fuel Economy (CAFE) regulations actually are. Our guys have gone through each automakers' lineup and calculated the actual average MPG as listed by the EPA's fuel economy numbers, while CAFE has adjustments and formulas that distort the actual numbers. For consumers, the listed MPG on the sticker is much more useful, and is what this list includes.
http://www.cars.com/go/advice/Story.jsp?section=fuel&story=TMI&subject=fuelList
http://www.cars.com/go/advice/Story.jsp?section=fuel&story=TMI&subject=fuelList
With gas mileage figures posted on the window sticker of just about every new car sold in America, it's easy to see where an individual model stands. Rating where each automaker stands, though, is trickier. The closest thing to an official ranking is the federal government's corporate average fuel economy program, established in 1975 and regulated by the National Highway Traffic Safety Administration. Suffice it to say the program has major implications for automakers — especially with a recent mandate that mileage standards increase over the next dozen years — but these numbers can be misleading to car shoppers.
Case in point: For 2007, CAFE rated Honda's domestic passenger-car fleet at 33.5 mpg; Honda's imported cars averaged 39.6 mpg, and its light trucks averaged 25.0 mpg. Given those figures, you'd think a typical Honda dealership would be teeming with cars with combined city/highway gas mileage in the mid-30s. You'd be wrong. Aside from the Civic Hybrid, no Honda has combined mileage (meaning a combination of city and highway mileage) of better than 31 mpg.