Green Car Congress
October 9, 2012
Vehicles sold in the US since October 2007 have saved a cumulative total of about 6.1 billion gallons of fuel—equivalent to the current total consumption of all vehicles in the US for about 13 days—due to their improved fuel economy, according to a brief report by University of Michigan Transportation Research Institute (UMTRI) researchers Michael Sivak and Brandon Schoettle.