I remember the December 2014 France plan of limiting or outright banning diesel cars.

http://www.autoblog.com/2014/12/01/france-moves-to-ban-diese...

https://www.carthrottle.com/post/no-diesel-cars-in-paris-by-...

This car makers reaction in June looks funny now

https://europe.autonews.com/article/20150626/ANE/150629983/a...