This study compares official fuel consumption values measured in laboratories with the real-world performance of 20 popular vehicle models. All models claim significant improvements in fuel efficiency since 2009, with reductions in official fuel consumption values ranging from 8 to 30 percent.

In January 2016 the EU Parliament will evaluate the RDE proposal from the European Commission's Technical Committee on Motor Vehicles (TCMV). This brief notes five things that could strengthen the regulation.

Analyzes results of emissions tests on 32 Euro 6 diesel passenger cars from 10 different manufacturers. Results show some automakers meeting diesel NOx emissions standards under more realistic driving conditions, while others lag badly.

Presentation by Vicente Franco & Peter Mock of International Council on Clean Transportation at the Anil Agarwal Dialogue 2015: Poor in climate change, India Habitat Centre, New Delhi, March 11 – 12, 2015.

The introduction of mandatory CO2 standards for passenger cars in the European Union led to a significant decrease in the level of CO2 emissions for new vehicles, as well an increased deployment of vehicle efficiency technologies.

This study, a meta-analysis of PEMS data from EU (Euro 6) and US (Tier 2 Bin 5/ULEV II) diesel passenger cars, documents the wide discrepancy that exists between official certification or type-approval emissions of nitrogen oxides (NOx) from new diesel passenger cars and actual NOX emissions from those vehicles during real-world, everyday operat

This report is the first to evaluate the response to fiscal incentives in 2013 to incentivize the purchase of plug-in electric vehicles in major vehicle markets around the world.

This paper compares fuel consumption / CO2 values of passenger cars from different sources and aims at quantifying the discrepancy between laboratory type-approval values and real-world values, including a retrospective analysis for the years 2001-2011 to determine if the gap between the two datasets has increased over time.