I have to admit to being a criminal. I have black and silver plates on my Roadster.
I do carry my correct plates in the car under the seat! If I get stopped I'll just accept that I knew I was breaking the law and hope to get a slapped wrist the first time.
Every day I see a number of cars....usually 4x4s....with illegally spaced characters or wrong sized plates.....mine at least are correctly spaced and sized...just the wrong colour