The number of people who remove DPFs is miniscule.
Taxing existing cars is exactly what's needed. Take the guy down my road with a 13 year old Passat which sounds like a bus. That shed needs getting off the road by whatever means. Of course all those with such pieces of crap will moan that they can't afford to replace them and it's not fair but frankly I don't give a toss. Just because you don't want or can't afford to replace an old shed doesn't give you the right to poison everyone else.
Tax my euro6 and i’ll Vote against on purpose.