TUV RHD AE86 Germany (help please)

[The Doctor]

I don't believe that is true. I guess this is coming from the UK worthersee convoy that got into trouble last month, but unless you're taking the mick, there's no way foreign cars have to meet German standards.
My car would be quite illegal in Germany, but passes Dutch Apk checks with flying colours, if I'd get stopped in Germany whilest doing nothing wrong, there would be a no way I can get in trouble.

Of course, when living in a foreign country you can't drive a car on different plates for a longer period of time before it draws attention.

My advice would be to forget about getting the car legal and buy something already in German plates. German tuv is the hardest test to pass in the EU I think. Would save a lot of money, effort and time.