As far as I know, the only version of Nurburgring GP before Mercedes-Arena (with the old Castrol-S) is done by.... Gilles75. In my opinion it's very poor, converted who knows where. It's on RaceDepartment (Nurburgring 2001).
I also would appreciate that good old Nurburgring GP layout very much. If we ever get that somehow (along with same era's Spa with a proper bus stop), the game is complete for me.
I'm seriously planning to create that version based on the Kunos track. I can't say when will be ready though. Maybe a few months, but depends on the COVID situation as well unfortunately.