From Laboratory to Road International: A Comparison of Official and Real-World Fuel Consumption and CO₂ Values for Passenger Cars in Europe, the United States, China, and Japan

The majority of all passenger cars sold in 2015 were subject to carbon dioxide (CO₂) or fuel economy standards. The six largest vehicle markets and nine of the top 11 have implemented such standards to curb fuel consumption and greenhouse gas emissions of light-duty vehicles. Leading markets have set passenger vehicle standards for 2020 and beyond, driving the decarbonization of road transportation and setting clear long-term targets for automakers. As a result, average CO₂ emission values of new cars are declining on a global scale. While fuel efficiency standards thus sound like a success, there is evidence of a growing divergence (or “gap”) between official and real-world CO₂ values in a number of markets, implying that laboratory measurements are increasingly overestimating the fuel efficiency of cars. The International Council on Clean Transportation (ICCT) analyzes the gap between official and real-world CO₂ emission values of European passenger cars in a series of studies termed From Laboratory to Road. This study extends the analysis beyond the borders of Europe and includes other major vehicle markets.

• Record URL:
  https://www.theicct.org/sites/default/files/publications/Lab-to-road-intl_ICCT-white-paper_06112017_vF.pdf
• 
• Supplemental Notes:
  • © 2017 International Council on Clean Transportation.
• Corporate Authors:

  International Council on Clean Transportation (ICCT)

  1500 K Street NW, Suite 650
  Washington, DC  United States  20005
• Authors:
  • Tietge, Uwe
  • Díaz, Sonsoles
  • Yang, Zifei
  • Mock, Peter
• Publication Date: 2017-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: White Paper
• Features: Appendices; Figures; References; Tables;
• Pagination: 69p

Subject/Index Terms

• TRT Terms: Carbon dioxide; Estimates; Fuel conservation; Fuel consumption; Laboratory tests; Passenger vehicles; Standards; Vehicle performance
• Geographic Terms: China; Europe; Japan; United States
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01667704
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 30 2018 9:19AM