The key thing here is GERMAN FONT.... nothing to actually do with pressed plates per se!
Rich is right.
I was very recently pulled over in a town centre for a random "flag them down" drink drive check campaign. I passed the breathaliser test with a score of 0 as expected which was completed in around five minutes.
They then spent what must've been the next 25 minutes talking to me about my pressed plates, which importantly are 100% legal and purchased in that knowledge. They have a stamp on but it's a very small font, probably size 4 font or similar in reality. The important thing is they have the stamp in the correct place and it's clearly readable at close range.
They quizzed me very politely on where they were from, how long I'd had them and the officer I spoke to for most of the time informed me that he couldn't actually scan them on his Blackberry QR reader which hooks-up with some sort of ANPR Blackberry app. He quite rightly pointed out that while they plates are legal, if some ANPR readers can't read them, it's no good to me as the owner should the vehicle
go missing.
While I don't think that will be true of all the ANPR cameras on the back of traffic cars and in the ANPR fixed Van units (surely that
would then be an offence?), it was interesting to find out in a chilled discussion.
No further action was required and he let me on my way.
Plates on the Audi are identical to these from my GTI. Font is completely standard, so not modified like the german pressed plates being discussed.