Does it really?
There are 2967 E39 BMW 530i Sport Saloons registered in the UK (Trivia: Only 437 have manual gearboxes)
There are 4453 8L Audi S3 Hatches registered in the UK.
This means that for every E39 BMW 530i Sport, there are almost two 8L Audi S3's.
Now remind me again what it was you were saying about rare cars and mass production?
I just wore a set of tyres out in 7000 miles, I don't tend to drive around wearing a smoking jacket and some driving gloves. That said, I don't see the point in not conforming to laws which are pretty damn easy to conform to and where conforming has no real effect on me.
It was a pretty forgotton rule - though its been there since the numberplate legislation was revised in 2001 - but its come back into focus in the last couple of years with revised instructions to MOT centres to the effect that they should fail cars with plates that do not conform.
You wont have been affected as your car isn't covered by the legislation as it's an X reg.