Though vehicles for sale today are more efficient than they've ever been, the average fuel economy of America's operating fleet has remained relatively stagnant since George W. Bush was President, research shows. Researcher Michael Sivak, writing at Green Car Congress, puts the focus on the miles driven by registered vehicles in the United States... Actual vehicle MPG improvement has stagnated since 2008
Though vehicles for sale today are more efficient than they've ever been, the average fuel economy of America's operating fleet has remained relatively stagnant since George W. Bush was President, research shows. Researcher Michael Sivak, writing at Green Car Congress, puts the focus on the miles driven by registered vehicles in the United States...