Emissions Testing
CO2 emission and fuel consumption figures that reflect real-world scenarios.
What is WLTP?
WLTP stands for ‘Worldwide Harmonised Light Vehicle Test Procedure’ and was introduced in 2017. The global automobile industry, together with international legislators devised a new way of testing new vehicles that provides more realistic figures of CO2 emissions and fuel consumption in the future.
It replaced the old vehicle testing procedure as a new way of measuring exhaust emissions and fuel consumption, which takes into account many additional factors that can effect consumption and is therefore much closer to our everyday driving behaviour.
A standardised way of testing
The WLTP driving cycle is divided into four phases, each with different average speeds: Low, Medium, High and Extra High. Each phase includes a variety of driving situations (acceleration, braking, stopping) based on statistical data from vehicles driven on the road. Even air temperature has been adjusted to better reflect the average European temperatures and, for the first time, vehicles with accessories such as roof racks, alloy wheels and spoilers are also taken into consideration. This new test method considers a broader range of different driving situations and therefore corresponds much more to real-world driving conditions.
You may also see a fuel consumption value for a “combined” driving phase, which is simply a combination of all four driving phases. This is even more reflective of a real-world driving scenario and is therefore the most quoted figure by manufacturers.
Finding your Emissions Figures
The WLTP figures are listed under the Full Specifications section of the website for each model, or you can speak to your local retailer to find out more.