Obama wants huge boost in fuel economy

WASHINGTON (AP) - The Obama administration is telling American automakers that it would like cars and light trucks to average 56.2 miles per gallon by 2025.
...
In early 2009, it brokered a landmark agreement that required automobiles on average to get 35.5 miles per gallon by 2016 and set the first-ever standards for greenhouse gases from tailpipes.

Report: Obama Motorcade Exempt From Greening Of Federal Fleet

The presidential limousine will remain an 8-mpg guzzler.