On the way back now, mid France, but what a fantastic time we've had, so this is just a starter topic for others that might want to try these routes...
Brilliant mountain driving with scenic, botanical, animal and cultural interest at almost every turn, Oh, meteorological too

Pictures and some route maps on return, so if you're planning anywhere South West France, keep an eye out on this topic, you won't regret it..
Yesterday lunchtime we were having a snowball fight at 8,000 ft in Andorra , this lunchtime we were sitting under the Millau Viaduct in hot sunshine... and well on the way back.