When I was in Germany I noticed that their discipline on the autobahns was much better than people's over here on the motorways. We hadn't planned to go to the Nurburgring until we saw it on the map about 100 miles away (we were just doing a general road trip around Europe), but it wasn't too hard to get to, until just when you're nearly upon it and all the signs disappear (the cars screaming past on the other side of a hedge at 12839172987mph helps, though).
We arrived on the test day for an endurance race, so we couldn't drive. We managed to avoid buying a ticket by sheer luck. I think we parked in the wrong car park, and found a cafe which has a balcony against the start/finish straight.
Getting out was a nightmare, we had no idea where we could find a place to stay, and nobody spoke English well. After a half German, half English, half impromptu sign language conversation, we headed for a town, which we missed but ended up in Daun and stayed in a nice hostel where NOBODY spoke English at all.
P.S. You'll love it. Simply being there was amazing, I can only imagine what it would be like to ride it.