The problem with the ring is its now "all about the money making" in the past year new fencing has been put up, new signs the lap passes and if you go to the new casino, hotel and rollercoaster they are really selling the place.
The track on open days is not a race track however to the germans the autoban. Was there about two months ago with mates and the track was constantly being closed due to accidents and so easy done as well although lots of porker GT3's caged up and folk wearing racing helmets etc.
As for taking passengers they dont want to see people taxi as they have the ring taxi's for this its like a years waiting list and the two BMW's are constantly flying round track.
They are really strict on cars who drop oil so before you go make sure you have no leaks give the underside a good wash and monitor your fluid levels do this before you leave the hotel in the morning as well. If your seen looking under your car loads at the track it will only attract attention. A lot of bike accidents are due to spilt fluids if you notice you might be dropping some while going round pull over and check your motor out. If you dont and cause an accident you are held liable remember there are guys everywhere taking photos and the report back to HQ if they see anything around the track.
Oh and if your looking for a jet wash (not a drive in car wash) as you will want your motor looking tip top plus it will be covered in flies with the drive across. We have driven everywhere and finaly found one it looks far away on the map but it isnt far from the track.
You need to go to "barweiler" bottom left of this link.
You will see in this link a garage on the left hand side of the road. As you approach the petrol station there is a carwash on the left drive in here and right ahead of you in the trees is an amazingly powerfull jetwash its basic just a lance so take a spong and soap/bucket and 1 euro's