https://www.transportenvironment.org...ing-volkswagen
T&E analysed emissions test data from around 230 diesel car models. Data were taken from the investigations conducted by the British, French and German governments, as well as a large public database. The carmakers’ ranking was built with on-road performance figures mostly measured in real world driving. The key findings per car brand are: Fiat and Suzuki diesel cars on average pollute 15 times more than the legal NOx limit; Renault-Nissan vehicles exceed the limit more than 14 times; General Motors’ brands Opel/Vauxhall pollute 10 times more while Volkswagen diesel cars pollute twice as much as the Euro 6 standard.