Following the official release of real-world fuel consumption figures for 30 Peugeot, Citroen and DS models in July, the PSA Group, Transport & Environment (T&E), France Nature Environnement (FNE) and Bureau Veritas are fulfilling their commitments and publishing the test protocol, which is described as a “reliable framework based on a robust scientific approach.”

The protocol for measuring real-world FC defines the means (necessary equipment) and methods (measurement and processing) that should be systematically applied to calculate the average real-life FC of the average customer. The protocol breaks down into the following three steps: selecting and checking the vehicle, driving the vehicle and performing the measurement, processing the measurement results.

The measurements should be taken when the car is being driven by a non-professional driver on public roads open to traffic and under real-life driving conditions, with normal use of the air con, passenger and luggage loads and road gradients.

In addition to the results already published in July, Peugeot and Citroen recently released real-world FC figures of another 10 models (including the new Peugeot 3008 and Citroen C3) on their websites. By the end of 2016, real-world FC figures for 50 models tested during the year will be published.

At the same time, a simulator to enable customers to predict their vehicles’ FC based on driving style and conditions will also go online. In 2017, the grouping will extend the same procedure to the measurement of real-world nitrous oxide emissions.

“The real-world test developed with PSA Group provides full transparency towards customers and more representative information to drivers than the new laboratory test, helping them choose the most fuel-efficient cars. This scientific approach is robust, reproducible and reliable in measuring real carbon emissions. Thus, we urge the European Commission and all carmakers to use this test for regulatory and advertising purposes,” said Greg Archer, clean vehicles director at Transport & Environment.

Looking to sell your car? Sell it with myTukar.