Off topic but never mind.
From mid April till end of October you can daily use an F-40 on every road in Switzerland without even thinking about snow or salt.
The other months of the year you may not wish to drive her because of (possible) salty roads. However, for people who do not care about salt all roads do not represent a problem below an altitude of 800 meter. In town, during winter time there is hardly one day of snow per year.
Switzerland is friendly with powerful RWD cars' users and there are plenty of them. Mountain roads are simply fantastic but I would recommend them from end of March till end of October.
I love the F-40 !
