In order to provide its customers with better information, the PSA has made independent, certified calculations of real-world fuel consumption available. It has partnered with the NGO Transport & Environment and France Nature Environnement. Together, they have defined a protocol for measuring real-world fuel consumption, which has been approved by the certification company Bureau Veritas. This protocol predicts the real-world fuel consumption of vehicles travelling along a 57.3 mile route combining urban, rural and motorway driving. The vehicles tested travel on open routes in normal traffic conditions, with passengers and luggage. The use of air conditioning or heating is also mandatory. The routes selected have gradients representative of real-world usage. This allows Peugeot, a PSA Group brand, to be more transparent with its customers.