I think I can explain this, but I'm afraid it won't be very helpful. Paris is likely not the scent name; it's just where MPG is based. On all of the MPG carded samples I've seen, the individual fragrance name is only written on the card. All of the vials are marked the same. So if the cards and vials become separated, you are going to be playing detective. If it is a very strong, dirty, earthy and to my nose scortched vetiver, I'd bet it was Route du Vetiver.
Can't resist a chance to google- Fleur des Comores, Racine and Parfum d'Habit are your other possibilities.