NYT: A new report from a University of Michigan researcher estimates that, even without going electric, U.S. cars and trucks could achieve an average efficiency of 74 miles per gallon by 2035. Compared to a federal 2005 Corporate Average Fuel Economy (CAFE) baseline, that’s a tripling of fuel economy. Under the researcher`s fuel economy projections, the average car in 2035 would save 5,254 gallons over its lifetime compared to a similar 2005 vehicle, and would emit 47 tons less carbon …