INTERACTIVE MAP BY MICHELIN

you may want to play with this and see if it is of help.
Example Phuket ->Chiang Mai

http://www.viamichelin.com/viamichelin/ ... ry=1145798

 

was told that 3rd parties cannot use my personal search link.

Try http://www.viamichelin.com/

I didnt compare but was told that Michelin is better than

http://www.clickthai.de/Map/