I was planning my summer road trip and stumbled across a beauty of a site if anyone is planning on driving within Europe. The nice thing is you can start and end your journey in any country. The website plans your trip, tells you of any tolls, calculates mileage and gas, and gives you a handy visual of the signs to watch out for (very nice feature, will save my marriage this summer)! This site even has a little picture when you are to pick up the toll ticket...how exciting!
http://www.autoroutes.fr/voyage/itineraires.php?lng=2