Not wanting to seem picky (I can be a pedantic so & so at times
), but it would seem that the MG logo under the GB symbol contravenes DVLA requirements, which states that "You are not allowed to display any other flag or symbol..." (other than the EU, or National flag - see page 12 here:
https://www.gov.uk/government/upload.../dg_067666.pdf)
Having said that, I have to agree, they are stunning looking plates,
and in the real world, I don't suppose the MG symbol would cause any issues unless you are unfortunate enough to get pulled by a traffic cop who is having a bad day!
Cliff