Since April, I have been carrying out an investigation for EUobserver about Dieselgate. I have followed all hearings by the special inquiry committee of the European Parliament, and wrote a range of investigative articles. You can find most of them at euobserver.com/dieselgate or see a selection below:
On-road emissions tests: How EU failed to change to the fast lane
One year on: Dieselgate keeps getting bigger
How the car industry won the EU’s trust
How carmakers were allowed to bend the law
Dieselgate shows weakness of EU federalism-lite
Car makers caught out on dodgy EU claim
Leaked memo: EU commissioner ignored car emissions warnings
Verheugen went off-script in VW cheat testimony
EU encouraged car industry to cheat, French report says
Peter Teffer 
Thank you Peter for you meticulous research on dieselgate. As a European Governance student specialised in environmental affairs I have read your articles with the upmost interest. I hope you will continue your reporting on Dieselgate, since there is more to be revealed I believe.