If you have a TomTom, you can download the TopGear greatest driving routes of Europe. Stick to the A roads, they're pretty quick though do go through lots of towns, so don't bother booking any hotels, just risk it & see where you end up as Europe has so much to offer...
If you're still there at the end of August, look out for me as catching up with some friends near Limoges.
Happy days fella & safe driving