[daveswilson]

I don't think anybody's sanctioning the use of driver assist features on small twisty roads the snow yet, are they? If so please share what you were driving - that would be interesting even if it didn't work well at the time. Most of these things, AFAIK, are in the LKAS, ACC, LDW range and meant for highways and there are mutterings about that in the manual. I sometimes use ACC and/or LKAS on country roads but only with very low expectations.

Teslas at least get better over time. If it got confused over a fork in the road, there's a decent chance that after a near-future firmware update that same car will no longer be confused. A few folks have acknowledged that they're now smart enough to slow down for curves (even sometimes a bit generously), and they are among the few that work pretty well off-highway (most of the time).

[PraetorianGourd]

It may not being marketed directly, but calling something "full self driving" greatly implies that self driving is fully supported in all scenarios. I have not seen any Tesla marketing that says "full self driving, on big roads with clear markings in dry/slightly damp weather".

Words matter