That’s because a 15 year old petrol car (Euro 4) is almost always better than even a 3 year old diesel car (Euro 6): https://mobile.twitter.com/apbandiv/status

That’s because a 15 year old petrol car (Euro 4) is almost always better than even a 3 year old diesel car (Euro 6): https://mobile.twitter.com/apbandiv/status/1006238872966066176 https://mobile.twitter.com/apbandiv/status/10062388729660661... And 15 year old diesels are terrible. Banning dieselgate-era diesels is overwhelmingly the most important policy. Only RDE (Real Driving Emissions) diesels are ok, and under EU rules RDE has only come in during the last year or two, and even now is quite lax. Diesels will only be fully required to fully meet the pollution standards under real world driving conditions within a year or two, and only then will be roughly equivalent to petrols built from 2004 onwards.