My point was, that if a car is legal in one part of the EU, then it should be legal in any part of the EU, especially if it was made in (or for) the EU in the first place.
That said I am so rabidly anti-EU that it comes as no surprise to me.
This whole modification issue is another saga altogether. It's a fight that a friend of mine, Kev Rooney (an eminent 'special' builder), and 'ACE' (Assoc of Car Enthusiasts) are bravely fighting on behalf of all car modifiers/ customisers/ competition car owners (eg historic rally cars). The veteran and vintage brigades have sold-out by declaring that they'll agree to be limited to only driving a few days a year.
We should all fight this if we are car / bike/ vehicle enthusiasts, because it's not just about 'customising' in that sense, some of the proposals are potentially very worrying; for example 'they' even want to dictate what make of tyres you can fit..... if that's not open to price rigging by tyre manufacturers then I don't know what is. Watch the politicians line up to take positions on those boards! It's all bent.
Some regs are already in force in Germany/ France I believe .... aparently they have to come here to register a special (eg 'kit-car')...and a SVA is a difficult enough hoop-jumping exercise here!