Price for 1 round is 190Euro.
That is to expensive.
When you are on the ring you can ask some private race drivers if he could to take in his car for one round.
I did it too. Nobody says NO.
And is nothing to pay.
There are so many nice cars, M5, M3, Porsches and so on.
I drove with a lot of cars as a passenger.
I didn't pay anything.
There are a lot of good driver at the ring.
Now I'm driving for myself with my M3.