Customs clearance is mandatory
The vehicle must be cleared through customs. Customs gives you the 846 A certificate, which the registration agency (ANTS) will require. Customs duties depend on the origin of the vehicle: check with a customs office before you buy.
COC or RTI?
Many models sold in the United Kingdom also exist in Europe. If the manufacturer can issue a European certificate of conformity for your vehicle, order it on homologations.eu. Without a COC, it is the RTI.
Right-hand drive and lighting
Right-hand drive is not prohibited in France. The headlights, however, are designed for driving on the left: they must be replaced or their conformity proven. The speedometer must display km/h.
The roadworthiness test
For registration, the ANTS accepts a roadworthiness test carried out in France or in a European Union country. The British MOT no longer falls within that scope: plan for a French “contrôle technique”.
Is an AVDT possible? No, unless the vehicle has already been permanently registered in a European Union Member State.