ABSTRACT. Improving the fuel efficiency of automobiles (cars and light trucks) is an important means of addressing transportation oil demand and greenhouse gas (GHG) emissions. This report examines the efficiency attainable through evolutionary changes in U.S. automobiles that have fueling characteristics as well as performance, size and other attributes similar to those of today. The analysis combines results from previous engineering studies of powertrain efficiency and load reduction with new examinations of rates of technology change and cost reduction.
Chapter 7 in Climate and Transportation Solutions: Findings from 2009 Asilomar Conference on Transportation and Energy Policy Abstract Policy makers have long turned to vehicle regulation for addressing public concerns about transportation’s energy and environmental impacts. This paradigm is ratified in recent action to raise Corporate Average Fuel Economy (CAFE)…