1. I live in the upper midwest and so far only do all-seasons. But yes if that is your route, just ask the shop "Have you ever changed tires on a tesla". If they don't answer fast, call the next one.
2. No and no. You can buy one called modern spare, OR you just use roadside assistance. I have never changed a tire on the side of the road (not that safe TBH), so I will not be getting a spare.
3. The manual has a section, not much to it.
4. yes. First party for 1k ish, or third party for 300-400.
5. We don't know yet! Has not been a cold winter since it came out. The charge port SHOULD help a lot. The door handles let you "rock" them side to side in case of ice.
6. To me, this is more reason to just do the 19s. No need to switch out tires in the summer, and much less flat chance.
7. You can use
Tesla Traffic Incidents and Information in your browser. I was addicted to waze also, but personally have switched to Tesla nav and it is "fine"
8. Yes most things. You can for example say "my ass is cold" and get your seat warmer turned on.
9. I enjoy it. When I go back into an ICE car with buttons, I have a panic attack. Most important stuff like climate is on the bar always on the screen. You never need to dig deep into menus for the normal stuff you do while driving.[/
I'm gonna try #8 “my ass is cold” once I get in the car