As far as I can work out from work (The AA) they will recover you home under your 5 star cover as long as your not actually on the Ring itself, after all, if I crashed pulling out of the hotel, I'd be a bit naffed off if they refused just because I was in Nurburg Village!! There is also ADAC european cover that should do the same thing but I'd rather speak to english speaking operators to get me home so I stick with 5 Star.
AA has also said that they will recover from uk non competative trackdays as long as the car is not actually on the track. A race care no but as long as the car is a fully road legal car they will do the business!!
Oops, just realised I'm signed in under SHESCOOBY not Smiley... Doh[:$]