This is so very wrong - back in 2001 the Labour Government encouraged the purchase of Diesel vehicles, reducing diesel and pumping money into the industry.
Now those vehicle owners are being heavily penalised with increased fuel, taxes and now parking charges !
http://www.telegraph.co.uk/motoring/news/11007326/Diesel-car-drivers-betrayed-as-EU-cracks-down-on-Britain-over-air-pollution.html
https://www.theguardian.com/business/2015/oct/01/uk-government-wrong-to-subsidise-diesel-says-former-minister
http://www.telegraph.co.uk/news/2017/01/27/new-london-parking-surcharge-diesel-drivers-predicted-spread/