I was just there and can confirm that we can drive on The Ring with the tourist ED tags. Also, you don't have to exit after each lap. There's a separate toll gate if you go straight but you might want to take a break after the first lap and digest what you just did. Plus, the parking lot, both right and left sides, are packed with serious cars and owners that are happy to talk about them.
It's a special place, no doubt about it! Don't forget your sticker!
