Agree, though an intensive one (8500km in 6 weeks) that is just subjective experience, which is why I caveated it mentioning that it was our own family personal experience.

I lived in a mountainous area of Italy (very narrow roads, full of ups and downs) so I am a fairly confident driver (probably why I was not too stressed driving in Italy) and drove in countries like India and Iran in the past (so very familiar and happy with slow, but very crowded and unpredictable traffic).

To clarify, the anxiety we had on Autobahn and Swiss' highways was not a reflection on the quality of the roads, and more a reflection on the driving 'style' combined with the speed that those roads allow. The style was quite aggressive, very fast in every lane, loads of overtakes (car constantly zig-zagging), people coming from the back _FAST_ and staying there, people switching lanes immediately after signalling rather than giving some time for people to notice. Overall, that combination made for a very stressful experience which we have agreed (as family) not to repeat in the future.