Grant:
I think some German insurance companies do cover on Tourist Days on Ring (since part of German highway when not a private track day), but it is variable (some don't, afaik).
Yes, depends on the insurance company. Some do cover also trackdays (basically everything except it's a real race format).
The map reminds me of a funny experience years ago when I participated in a track event offering to do your own laps in a F1 car. One of the participants was crawling around the track like in a bobby car. When the guy was returning to the pits the instructor asked what the problem was. The guy pointed on the little map on his knees: "I was just trying to follow the lines as shown on the map"
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Daily Driver 991 Carrera T (June 2018), Canyon Carver 981 Spyder, Track Machine 997 GT3