Table 4-23,,,,,,,,,,,,
Average Fuel Efficiency of U.S. Passenger Cars and Light Trucks,,,,,,,,,,,,
,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999
Average U.S. passenger car fuel,,,,,,,,,,,,
   efficiency (mpg) (calendar year),,,,,,,,,,,,
Passenger car,15.9,17.4,20.2,21.1,21.0,20.5,20.7,21.1,21.2,21.5,R21.6,21.4
Other 2-axle 4-tire vehicle,12.2,14.3,16.1,17.0,17.3,17.4,17.3,17.3,17.2,17.2,R17.2,17.1
,,,,,,,,,,,,
New vehicle fuel efficiency (mpg)a (model year),,,,,,,,,,,,
Light-duty vehicle (passenger cars plus light trucks),,,,,,,,,,,,
  Domestic,21.4,24.0,23.9,24.4,23.9,24.3,23.7,23.8,24.1,R23.3,R23.3,23.7
  Imported,28.6,30.3,28.5,28.4,27.9,28.1,27.7,27.9,27.7,27.5,27.6,26.9
    Passenger car,,,,,,,,,,,,
      Domestic,22.6,26.3,26.9,27.3,27.0,27.8,27.5,27.7,28.3,R27.8,R28.1,28.2
      Imported,29.6,31.5,29.9,30.1,29.2,29.6,29.6,30.3,29.7,R30.1,R30.0,28.4
"    Light truck (<8,500 lbs GVWR)",,,,,,,,,,,,
      Domestic,16.8,19.6,20.3,20.9,20.5,20.7,20.5,20.3,20.5,R20.2,20.5,20.4
      Imported,24.3,26.5,23.0,23.0,22.7,22.8,22.1,21.5,22.2,22.1,22.9,22.5
,,,,,,,,,,,,
CAFE standards (mpg)a (model year),,,,,,,,,,,,
Passenger car,20.0,27.5,27.5,27.5,27.5,27.5,27.5,27.5,27.5,27.5,27.5,27.5
Light truck,16.0/14.0b,19.5,20.0,20.2,20.2,20.4,20.5,20.6,20.7,20.7,20.7,20.7
a  Assumes 55% city and 45% highway-miles.  The source calculated average miles per gallon for light-duty vehicles by ,,,,,,,,,,,,
taking the reciprocal of the sales-weighted average of gallons per mile.  This is called the harmonic average.,,,,,,,,,,,,
b  2 Wheel Drive/4 Wheel Drive.  No combined figure available for this year.,,,,,,,,,,,,
,,,,,,,,,,,,
KEY: CAFE = Corporate Average Fuel Economy; GVWR = gross vehicle weight rating; mpg = miles per gallon; R = revised; U = data are not available.,,,,,,,,,,,,
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NOTE:  The fuel efficiency figures for light duty vehicles represent the sales-weighted harmonic average of the combined passenger car and light truck fuel economies.,,,,,,,,,,,,
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SOURCES:,,,,,,,,,,,,
Average U.S. passenger car fuel efficiency:,,,,,,,,,,,,
"1980-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A. ",,,,,,,,,,,
"1995-98: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.",,,,,,,,,,,
New vehicle fuel efficiency (based on model year production):,,,,,,,,,,,
"1980-90: U.S. Environmental Protection Agency, final fuel economy calculations for the U.S. Department of Transportation, National Highway Traffic Safety Administration, ",,,,,,,,,,,
as cited in Internet site www.nhtsa.dot.gov/cars/problems/fuelecon/index.html.,,,,,,,,,,,
"1991-99: Manufacturer's preliminary estimates for the U.S. Department of Transportation, as cited in National Highway Traffic Safety Administration, Automotive Fuel Economy Program, ",,,,,,,,,,,
"Twenty-Fourth Annual Report to Congress, Calendar Year 1999, Internet site www.nhtsa.dot.gov/cars/problems/fuelecon/index.html.",,,,,,,,,,,
CAFE standards:,,,,,,,,,,,
"1980-99: U.S. Department of Transportation, National Highway Traffic Safety Administration, Automotive Fuel Economy Program, Twenty-Fourth Annual Report to Congress, Calendar Year 1999, ",,,,,,,,,,,
Internet site www.nhtsa.dot.gov/cars/problems/fuelecon/index.html.,,,,,,,,,,,