Since the picture didn't come from any kind of official site you could well be right, and the site is wrong.
However, the truth could be a bit murky.
All the development for the Medallion was done in France, so it being French-registered wouldn't necessarily mean it wasn't a Medallion. All Medallions were made in France too weren't they?
However, since the Medallion idea was a later brainwave and the rear lights are not what any of the production cars had it could well be this is an early 21 prototype - pre-dating the Medallion idea!
I don't know that the lack of federalisation features is any kind of an indicator, since they looked so similar anyway. Pity we can't read the badges, if indeed they say anything...!