Some new diesel models emit 12 times legal limit, while others ‘are the cleanest cars on the road’False emissions ratings for cars based on lab tests have cost the UK more than £2bn a year in lost tax revenue, according to the Green party. Since 2001, UK vehicle excise duty has been based on carbon emissions. Fiat 500X, Nissan Juke and Renault Megane models were all graded among the worst polluters in tests conducted by Emissions Analytics. They emitted less than 80mg/km of NOx pollution in real-world tests, lending partial support to manufacturers’ claims that the newest diesel cars are the cleanest ever. All new diesels will be placed in a higher tax band from April, before a real-world driving emissions certification comes into force in 2020.

Source: The Guardian March 10, 2018 07:52 UTC