Photo of my second lap from a random 'Ring photographer.
I can see how this could be addicting... I've ridden along twice, once in a race-preped Suzuki Swift and once in a 1M, but today I actually drove two laps. I was a little nervous: there was some construction and drivers of unknown providence. The construction turned out to be well marked and only affected a small area. The first lap at 09:00 was nearly deserted. One corner caught me out and I ended up on the high-curbing but not a complete off. The second lap I started behind a VW minivan that wouldn't let me by for several turns. I gave a 911 the pass and then the VW did as well. But did he give ME a pass?
So I found a small straight and took it when he moved over. He didn't give a signal but I made a command decision. My friends Derek and Jenn rode along on both laps and were fantastic passengers. Jenn didn't throw up on the back seat once! 
Jenn noticed that the driver of one of the cars I passed on the second lap was holding his cell phone like he was recording his lap WHILE DRIVING. 
After those two experiences I decided to call it a day.Random thoughts:
This track is crazy fast
This track is CRAZY
I can't imagine it in a race car especially for an entire endurance race!
It's very rough in several sections like a public road, not a "true" racetrack
The carousel is mental
I can see how someone could get addicted to this
My next dream is to go out on a warm, dry, deserted track with an instructor
Nürburgring truly is Mecca for car fanatics, you must make a pilgrimage at least once
Congrats!
