What is the WLTP fuel economy and emissions test?


There was plenty of disruption in 2018 when the WLTP rules for new cars came into effect. But what are they and what does it mean for car buyers?
Is your car exempt from London’s Ultra-Low Emissions Zone charges?

Is your car exempt from London's ULEZ?


In April, London will become the first city in the world to establish a dedicated “ultra low emission zone” (ULEZ) — is your car affected?
Buy your car before April 1 to avoid tax change shock, advise experts

Neutral fuel strategy calls as diesel declines


Car sales in June fell by 3.5% compared with the same period last year as buyers continue to shun diesel vehicles.
Could new NOx emissions tech from Bosch save the diesel engine?

Could NOx emissions tech from Bosch save diesel?


Amid the chaos and confusion over the future of the diesel engine, which led to a 17% fall in UK sales of new diesel-burning motors last year, co
VW chairman: people will be held accountable for diesel emission tests on monkeys

VW chairman calls for probe into monkey tests


Volkswagen is to investigate allegations that it was one of three car makers that paid for tests in which humans and animals were exposed to...
Diesel tax anger as new models beat petrol in NOx pollution tests

New diesel models beat petrol in pollution tests


Some new diesel cars are much less polluting than new petrol cars, according to research. Independent tests have identified 11 diesel models, in
No diesel engine for new Honda CR-V as crossover goes hybrid

No diesel engine for new Honda CR-V


The all-new Honda CR-V will not be available with a diesel engine, according to the Japanese manufacturer.
Car Clinic: Can additives reduce the pollution from a diesel car?

Car Clinic: Can additives reduce diesel pollution?


"Can fuel additives or retrofitted devices make a diesel car less polluting? And will removing biofuel reduce NOx emissions?"
What you need to know about government diesel scrappage and nitrogen dioxide reduction

Non-electric cars to be banned from 2040 (updated)


All cars sold in the UK from 2040 will be electrified, the government has announced, in a bid to remove conventiona diesel and petrol vehicles...
Government to announce diesel car scrappage scheme 'within days'

Government to announce diesel scrappage scheme


A diesel car scrappage scheme will be announced "within days", according to reports, as the government scrambles to reduce air pollution.
Mercedes recalls three million diesel cars made since 2011 over toxic emissions

Mercedes recalls 3m diesel cars


Just days after Mercedes-Benz boasted of record-breaking sales, its reputation has suffered a dent. The firm is recalling 3m diesel cars ...

What is AdBlue and how is it refilled?


Governments and the car industry work toward increasingly stringent emissions regulations. For the EU and member states, including Britain, these
Renault diesels ‘are worst polluters’ according to Which? tests

Renault diesels ‘are worst polluters’


Renault diesel cars emit the highest levels of toxic nitrogen oxides of all the big manufacturers and the French company’s recent models...