The latest vehicles, with the best finance options

Worst cars for pollution

Which? has carried out tests on diesel cars analysing 278 diesel cars from leading carmakers between 2012 and 2016 testing average NOx emissions alongside official Euro 5 & more recent Euro 6 limits (set at 0.18g/km & 0.08g/km respectively)

all 16 Renault cars had NOx emissions up to 4 times higher for Euro 5 & 9 times higher for Euro 6 limits – 0.73g/km & 0.72g/km respectively

6 Nissan cars tested had average NOx emissions of 0.8g/km

Jeep also had some of the highest emissions- 1.735 g/km on the 2 cars tested – 9.5 times the Euro 5 limit

the 33 BMW cars tested had some of the lowest NOx emissions – average of 0.41g/km for Euro 5 & 0.14g/km for Euro 6 – John Kiran Motor Trader