You can ask the artisan to supply you with:
If you sell your car in France, you will need to send a ‘Déclaration de Cession’ signed by both parties to your insurance company.
You must write ‘Vendue’, as well as the date and time of sale across the Carte Grise (French log book).
That way, if the purchaser of the car gets fined for speeding you will have a proof that you were not the driver.
You can easily download a “Déclaration de cession” from the internet. Follow this link here.
Click on ‘Téléchargez le formulaire’.
Finally, if you require any help with some paperwork in France, please contact me here.