Values of used diesel cars have fallen since the start of 2017

In recent months, car manufacturers and even governments have turned against diesel-engined cars. Now, it seems, buyers have too, as the average value of the country's most popular diesels has fallen by an average of 5.7 per cent between the first and third quarter of 2017. That's put the average price down from £4,581 to £4,318.

Data from vehicle valuation site Motorway.co.uk shows that the worst affected cars were Vauxhall Corsa diesels. They saw a hit of over 26 per cent, with values falling from £2,160 to £1,592. The Corsa's larger brother, the Astra, wasn't far behind either – values fell by 17.7 per cent from £2,949 to £2,426.