I would still think that in order to get your attestation in France you would have to declare it as something it is not (ie in compliance with French regulatory requirements, which follow the EU Regulation. If you admit that it has been modified, you may be required to produce something from MMC confirming that the vehicle is EU4-compliant and there may also be an inspection.
I would not expect a dealer to declare that a product it is selling is unofficial; and I would be surprised if any of them has taken legal advice on this. I am happy to stand corrected, but something about this does not look right.
Last edited by M3W55; 15/07/19 06:55 PM.