Foreign Equivalents of the Kelly Blue Book

I need to figure out the Private Party used car value for a car in France or Switzerland. Any online resources?

IIRRC the major services in France and Switzerland, are, respectively

France http://www.argusauto.com/ (click the ‘Cote Argus’ tab)
Switzerland http://www.eurotaxglass.ch/

You’re correct for France at least. The “argus” is the reference for used cars price.

As far as I can tell, I have to pay in order to get a used car price (for both of those links). Is that correct? My French isn’t so good. (And thanks a lot for the links, BTW).