These new rules are very concerning and the cynical person in me thinks they are deliberately aimed at getting older cars off the road. While they are being introduced with headlines to stop anti social changes to a vehicle the impact might well be far wider than that. Car manufacturers don't make spare parts for cars forever. Owners of older cars sometimes have to rely on aftermarket parts such as exhausts, not for performance or noise, but to simply keep the car on the road.
For example it's impossible to get a new exhaust for my 1994 Corrado. It has a Miltek exhaust because I simply can't get an OEM one. What happens when these new regulations are brought in? Will I suddenly have to scrap the car? As I said, the cynical part of me looks at this and thinks this is being introduced to stop people keeping older ICE cars when the ban on new ICE is introduced in 2030.
EDIT: The cynical side of me also thinks this was why E10 petrool was introduced.