The average fuel-economy rating vehicles sold in the United States this August was about 25.3 miles per gallon, that's down 0.1 mpg if we compare it with the July average. The the average fuel-economy rating for all of 2015 cars sold was 25.3 mpg.
We can truly say that fuel economy ratings on new automobiles sold out has improved by 5.2 miles per gallon, that's about 26%. Since the window sticker average is 5.2 mpg higher than when the data were first collected, the average is still 0.5 mpg below its all-time high of 25.8 mpg set in August 2014. Consumers started buying more light trucks, sport utility vehicles and crossovers, after the gasoline prices dropped in the U.S.. Michael Sivak and Brandon Schoettle from the University of Michigan’s Transportation Research Institute have collected all these data which are based on the average sales-weighted fuel-economy rating printed on a new car’s window sticker. It all started in July 2007 when the performance rating averaged 31.3 miles per gallon, and in October 2007 the sales have seen a flat month-over-month sales improvement.
All of these values are adjusted by the EPA, and they can't be directly comparable to the window-sticker ratings, but the car sales have fell for the first time since then this August 2016, to 1.511 million units. On a seasonally adjusted annual rate (SAAR) basis, the total tumbled from 17.86 million units in July to 16.97 million units in August. In August 2015 the SAAR came in at 17.79 million units.
