It's my area! (well, close to it! he he)
I actually drove on that road many times.
It's extremely dangerous, in my opinion. lol
(I even did it at night... I don't recommend it lol)
The pictures make it look quite dark and desaturated, but with the right filters, it looks really nice.
As usual with many hillclimbs on AC though, I wonder if they didn't make the road narrower on purpose.
I don't think it's that bad in real life.
For those interested, South of France is one of the best regions in the world for hillclimbs. Come and try Mont Ventoux. :)