As 2/3 of Switzerland is mountains you could compare it to living somewhere in the Rockies directly - just a lot more populated. Very quickly you are on narrow, and sometimes quite steep roads. There are few opportunities to go "off-roading" to practice or for fun. It is rather that you might have e.g. a holiday batch and the last few hundred meters of your road will be the worst, but the bit you really want to get through to avoid having to carry up your supplies. This is of course a very frequent condition in winter as your access is unlikely to be cleared unless you can arrange that beforehand yourself for a (steep) fee. For reasons unknown, people think that SUVs are better on snow than 4 wheel drive limousines. That is rarely the case if the limousine has enough ground clearance or can be lifted a bit. The distance from Zurich to St, Moritz are just 202 Km, 126m, but you go across the Julier Pass (up to about 2200m) and in bad weather a SUV might inspire a bit more (false) confidence. Second issue is of course the comfortable hatch-like back door. For many the Model 3 trunk is just a no-go when they consider a SUV.