France
Route Napoléon
- N85
- Digne Les Bains — Grasse (North of Digne is busy)
When : "the best time of day to hit is about 6-8pm later if you can, or early morning around 9 am, stay the night in castellane"
Ultimate Drives
http://www.ultimatedrives.net/top-10-roads/details.php?route_ID=100009
We recommend coming off the route Napoleon towards the gorge de verdon, a French version of the Grand Canyon, at over 730M up you can see down into the gorge, a fantastic experience at 40km from the route Napoleon.
For a slightly more testing drive, head through the Col du Labouret, then onto Lac de Serre Poncon – the descent being slightly more challenging, and the scenery just as rewarding. The road is challenging at high speeds, but not as technical as some of the mountain passes, however for the scenery and the flowing driving style definitely one of our top 10.
Total 911
http://www.total911.com/great-roads/great-roads-route-napoleon-france/
Therefore, it’s well worth jumping onto the A51 at La Saulce for the 47 kilometre leap down to junction 21 (signposted ‘Nice par RN’); the N85 runs virtually parallel to the A51 here anyway so we’d suggest that it’s worth pocketing the time saved.
D2204 Nice — Menton
Spain
N152
"head north out of Ripoll in spain, pass quickly into france (N20) then into Andorra, on the N22 all the way down to Soldue. ... The N20 and N22 gets busy during the day but the N152 is always empty (and the best bit).