Here’s our report on the UK plans:

The British government is to set up its own inquiry into car emissions and testing - including rerunning lab tests on suspect engines and conducting on the road emission tests.

It had called on the European Commission to carry out a Europe-wide investigation into the industry in the wake of the VW test-rigging scandal.

The UK’s regulator, the Vehicle Certification Agency - a division of the Department for Transport - will work with manufacturers across the industry.

Transport secretary, Patrick McLoughlin, said: “The Government takes the unacceptable actions of VW extremely seriously. My priority is to protect the public as we go through the process of investigating what went wrong and what we can do to stop it happening again in the future.

“We have called on the EU to conduct a Europe wide investigation into whether there is evidence that cars here have been fitted with defeat devices. In the meantime we are taking robust action.”

He said the VCA would work with vehicle manufacturers to ensure that the issue was limited to VW and not industry wide. “As part of this work they will re-run laboratory tests where necessary and compare them against real world driving emissions.”