I'm sure everyone knows there are lot's of track days at the ring (not just the tourist drive times). The one you mention is a street car only, with street legal tires.
Maybe plan a track day back to back at the ring and SPA (it's an hour away)- rent from RSR and get the same track car both places on race tires.
They run events both places.
http://www.rsrnurburg.com
for a calendar and car info.
We're already here, and will be here for 3 months. If anybody does show up, gives us a shout.
The 24 race was awesome. Great weather. We'll be racing in the next 5 VLNs - come have a beer and drive some with us.