I bet this won't affect commercial vehicles, taxis and so on.

Clean regulations? I think alot of people in Governments etc, banging on about clean air regulations and health issues created by the use of vehicles need to pick up a history book and discover what it was like before the invention of the car. When crowded cities used horses, there was s*** everywhere, disease was a daily occurance and life expectancy was low. So to now criticise the car, a major advancement in public health, for causing health problems, is a bit rich im afraid.

I think this is the newspaper article in question.

Looks like it's only proposed legislation, nothing has been passed.

I think it would add about 10p on to the price of a litre of diesel in the UK (currently fuel duty is the same for petrol and diesel). In most other EU countries the duty on diesel is less than the duty on petrol, so those countries would see a much bigger change.