I don't know where you read this but it isn't true. >only requires the inspection at regular intervals, not after every repair. This is how it is in Scandinav

I don't know where you read this but it isn't true. >only requires the inspection at regular intervals, not after every repair. This is how it is in Scandinavian countries too by EU law (well, in EU member states, I don't know about Norway). It is inspection every 4 years or if it is a vintage car (30+ yro) every 8. You also don't need "approved parts" (what does that even mean?) and I can freely buy parts from the US and Germany and use if I want to and have done so (I have a US-only model motorcycle). The manufacture have to get all their car types certified by the state, like how NCAP crash-test one of each model, and if it is certified in one EU country it is in all. But if you change the car significantly (like upgrade an old 80's Trans-Am with modern parts) you have to get it certified all over again for that one car as it is now a unique untested car. Possible but extremely expensive. Sure it doesn't give you the freedom to drive some of the homemade monstrosities some drive in the US but it also doesn't block niche cars or vintage cars.