Groupe PSA said it had adapted a new CO2 measurement protocol to measure pollutants (NOX and particles) and has released the first results for five Peugeot, Citroen and DS vehicles that comply with the Euro 6d-TEMP standard.

"These good results confirm the performance of the selected technologies and Groupe PSA's undertaking to meet the targets set by the EU emissions standards [in 2017] three years ahead of schedule," the automaker said in a statement.

The automaker noted emissions testing would be available for "80% of Euro 6d-TEMP compliant vehicles sold in Europe, by the end of 2018 in the case of passenger cars and by the end of 2019 for light commercial vehicles".

"The test protocol will also be extended to [group] hybrid vehicles in 2019."

The protocol developed by the group, T&E, FNE and Bureau Veritas has been adapted to measure NOx and particulate emissions in real driving conditions and, PSA said, showed "excellent results for both NOx and particulate number emissions".

PSA undertook to launch vehicles meeting the standards' RDE conformity factor of 1.5.

In addition to the fuel consumption test findings already released for passenger cars in real driving conditions, Groupe PSA this month is disclosing on the brands' website consumption figures for all Euro 6b compliant light commercial vehicles, including the Peugeot Partner, Expert and Boxer and the Citroën Berlingo, Jumpy, and Jumper.

"This process, carried out in collaboration with two NGOs, T&E and FNE, under the supervision of Bureau Veritas, was honoured for its effectiveness and robustness by an ECOBEST 2017 award," PSA said.

Gilles le Borgne, PSA quality and engineering head, said: "The excellent test results from our first vehicles demonstrate the validity of [the group's] technological choices. We have met the current target set by European standards three years ahead of schedule in the case of emissions in real driving conditions. We are pursuing our commitment to transparency with our customers through this undertaking, which was initiated in 2015 and continues to make a difference in the sector."