I believe the Saumur tank museum (not in Paris by the way, but along the Loire river) has/had 4 Panthers (not counting the BergePanther), at least two are runners and run regularly at the "caroussel" each year. The third was the one traded with the King of Jordan for two British vehicles and was a non runner as described by Matt.
The fourth example is the one that has been in outside storage next to the museum for years. It's pretty beaten up, but still in French post-war colours.
I believe there is another in Mourmelon-le-Grand....returned to German colours.
I think all 5 were vehicles used by the French army post-war.
By the way, there is a French post-war prototype tank in the Saumur museum, which was fitted with Char B type tracks and a Panther Maybach engine!
Alex
Edit: more info on the surviving panzers website:
http://the.shadock.free.fr/Surviving_Panzers.html
The Cadman brothers Panther and the Panther in the Overlord museum at Omaha beach are also ex-Saumur.