Tesla (and Apple) don't just work though. The latest Tesla issue I have is the navigation system which caches nothing and often takes 2-4-10 minutes before it updates the map WHILE I'M DRIVING and trying to find a new route. I end up having to take out my phone (more dangerous) and search there. This happened often in both SF and LA. Say you're driving, you want to zoom out a little to get some idea of where you need to be, which exits it's picked, etc. You zoom out and the tiles at that zoom level don't fill in for minutes. And, if you want to them to fill in you need to keep fingers on the screen, otherwise it auto-zooms back to the default level and throws away whatever data it started downloading. It's infuriatingly bad