The UK has like an unwritten rule of
If we pull you for being a dick, we'll do you for a smaller plate, measure your tyres and too loud exhaust (which can force a new MOT). They’ll also take ages with the insurance company to make sure everything that isn’t standard is marked as insured, even a sticker which technically is modified... the legal books coming.
The other hand is - we’ll turn a blind eye to the smaller plate, barely legal track tyres and not bother that the baffle you’ve removed after the MOT has ‘got stolen’ unless you be a dick