Under conditions defined by European Law, the Worldwide Harmonised Light Vehicle Test Procedure (WLTP) laboratory test measures fuel consumption and CO2 emissions of passenger cars – and also considers their pollutant emissions.
The lab tests for passenger cars measure:
Fuel consumption, CO2 emissions (directly related to fuel consumption), pollutant emissions, energy consumption values of alternative powertrains (including the range of electric vehicles).
The old test, the New European Driving Cycle (NEDC) was designed in the 1980s and is based on theoretical driving – safe to same this test has become outdated.
The new test, the Worldwide Harmonised Light Vehicle Test Procedure (WLTP), came into force in September 2017 and is based on real driving data – this means it better matches on-road performance.
The European Union (EU) has developed the WLTP and the EU automotive industry has welcomes the shift – actively contributing to the development of the WLTP.
The WLTP driving cycle is split into four parts with different average speeds – low, medium, high and extra high. Each part contains a variety of driving phases, stops, acceleration and braking phases. For a certain car type, each powertrain configuration is tested with the WLTP for the car’s lightest (most economical) and heaviest (least economical) version.
The WLTP was developed with the aim of being used as a global test cycle across different world regions – this is so that pollutant and CO2 emissions, as well as fuel consumption values, would be comparable worldwide. However, while the WLTP has a common global ‘core’, the EU and other world regions will apply the test in alternate ways depending on their road traffic laws and needs.
* All vehicle images and car descriptions on this site are for illustration and reference purposes only and are not necessarily an accurate representation of the vehicle on offer.
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