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.
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Supplemental Notes:
- © 2017 International Council on Clean Transportation.
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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