Various motoring and certification organisations have come together to test the real-world emissions of various Peugeot Group cars.
Beginning in 2015, the tests have covered more than 80 per cent of Peugeot DS and Citroen cars. This has been in collaboration with European transport organization Transport & Environment, FNE, which forms the French federation of nature and environmental protection associations and solutions expert Bureau Veritas.
More than 430 road tests took place, covering a staggering 24,855 miles.
The idea behind the protocol was to give as much feedback as possible for customers regarding emissions and real-world consumption figures.
Taking the cars on several different road types and in lots of different conditions, such as urban areas with lots of traffic jams and motorways, achieved this.
The diesel performed comparatively worse than petrol in urban conditions, with real-world figures 53 per cent higher than officially certified, and petrol vehicles 42 per cent higher.
Gilles Le Borgne, executive vice president of quality and engineering, for the PSA Group said: “The Protocol developed with T&E and FNE is a reliable response to the questions our customers may have concerning their consumption.
“They can access comprehensive and transparent fuel consumption data audited by Bureau Veritas. We will add the first figures for NOx emissions by the end of 2017.”
Following these tests, Peugeot, Citroen and DS offer their customers the opportunity to check the real-world figures for themselves to help them choose their next vehicle. All of the results are available on the respective websites.
Greg Archer, director of clean vehicles at T&E, said: “These real-world driving tests show that it is perfectly possible to achieve CO2 emissions and fuel consumption figures almost identical to those obtained by drivers on the road.“