Re: Interesting justification.
If true by some law of physics then all manufacturers will be equally affected.
This is the only flaw in your otherwise spot-on post; some manufacturers tried different ways of meeting the regulations, especially by selling petrol-engined cars and/or hybrid transmissions.
This is perhaps the fundamental problem: European manufacturers have committed hugely to a technology - diesels - that just can't meet the necessary standards. Saying 'tough luck' to pedestrians getting asthma and heart-disease isn't acceptable when there are superior alternative technologies in use right now.
They're right up shit creek with regulations now in the public eye, thanks to this scandal, they'll have an awful lot of trouble getting out.