UK's most popular diesel cars breaking emissions limits

Top models routinely pump out higher levels of toxins than lab tests show

Diesel pump
(Image credit: Dan Kitwood/Getty Images)

Britain's most popular diesel cars vastly exceed emissions standards, with official tests showing that some models pollute at levels 14 times higher than manufacturers claim.

The study, commissioned by the Department for Transport, found a huge discrepancy between figures generated in a lab environment and those in the "real world".

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