Gary Witzenburg
Future Fuel Economy Mandates, Part I: 54.5 mpg is going to be hard to reach
Posted Jan 26th 2012 7:56PM

Ask the average driver whether he or she would like better fuel economy from they car they're driving now, and the answer will, of course, be "Yes!" Ask whether the feds should continue forcing automakers to improve fuel economy on a very aggressive schedule, and most will, again, agree. But many people have little real understanding of what that will take... or what it will cost.
The lasting legacy of America's first major fuel crisis in 1973 remains the federal government's response to it: Corporate Average Fuel Economy (CAFE) laws. The first one required automakers' 1978-model "sales-weighted fleet averages" to be at least 18 miles per gallon. This was no challenge for imports selling mostly small cars, but a tall order for domestics at the time. It meant U.S. makers would have to balance sales of profitable larger vehicles with (usually loss-making) smaller ones, whether or not anyone wanted to buy them. Light truck standards followed for 1979, beginning at 17.2 mpg for 2WD and 15.8 for those with 4WD.
Critics contend CAFE is a sorry substitute for reducing fuel usage through higher fuel taxes, as other countries have done, because it puts the onus on automakers, regardless of market demand, and drives up vehicle prices. Still, CAFE was toughened each year through the early 1980s, softened slightly in the mid-'80s, then leveled off at 27.5 mpg for cars for 20 years, from 1990 to 2010. The truck number accelerated slowly to 20.7 mpg (combined for 2WD and 4WD) for 1996, stayed there through 2004, then climbed again to 23.5 mpg for 2010.Critics contend CAFE is a sorry substitute for reducing fuel usage through higher fuel taxes.
Then, on May 19, 2009, President Obama announced a new "national fuel economy program" mandating a fleet average of 35.5 mpg for by 2016 – a daunting 29-percent increase that moved the requirements of an existing 2007 law forward by four full years. Since 2012 models were essentially done, automakers would have just four model years to achieve it.














