Originally Posted by
Hussar 54
It's not just aircraft and aviation.
The UK could, of course, decide ( or retaliate - take your pick ) that after the UK leaves the EU and is squeezed out of EASA, that cars need to have a UK issued Type Approval as those issued in France, Germany, Poland, Slovakia, Italy, Sweden, Spain, etc, are no longer applicable to a non-EU member.
Type Approval for Cars
Of course, the UK could do that. Which might hurt some OEMs, although currently they are more concerned about china and the US. And at least the german OEMs have already stated that the continued integrity of the EU single market is more valuable to them than a fudged brexit deal, although they would of course prefer a good deal, which includes UK membership in the single market and customs union.