If you're using the English version of Viamichelin be warned that the tolls it calculates are incorrect! I'm frequently quoting tolls in response to various questions and my figures have always been higher than those quoted by other people. Now I think I know why - I've just checked out the various versions of the website (I always use the French version) and only the French one gives the correct tolls at today's date.
I checked the Millau viaduct price - which I know is currently 11.80 euros (summer price for car and caravan - it drops in winter) and the French version quotes the correct amount. All the others (I checked English, Dutch and German) give an incorrect figure - with various different amounts, suggesting differences in the dates they have been updated with information! The English version gives the toll at 7.97 for car and caravan - which is years out of date!
This is the version I use: Viamichelin.fr
PS Edited later: I've just had an email from Viamichelin to say they are working on the problem - very quick response!
I checked the Millau viaduct price - which I know is currently 11.80 euros (summer price for car and caravan - it drops in winter) and the French version quotes the correct amount. All the others (I checked English, Dutch and German) give an incorrect figure - with various different amounts, suggesting differences in the dates they have been updated with information! The English version gives the toll at 7.97 for car and caravan - which is years out of date!
This is the version I use: Viamichelin.fr
PS Edited later: I've just had an email from Viamichelin to say they are working on the problem - very quick response!