BTCC's licence is still with Codies IIRC, but the STW cup should be possible with the ADAC connection That is unless DTM have something to say about it, given that they were rivaling series back in the day.
Yeah - I guess ADAC STW-Cup from 1998 would be a great addition for all Fan's of that era in Touring-Cars. That would include the following cars: Alfa 156 Audi A4 BMW 320i Honda Accord Nissan Primera Opel Vectra Peugeot 406