Question: What is the circuit for the ADAC Großer Preis der Tourenwagen race?
SQL: SELECT "Circuit" FROM "2-17669275-2" WHERE "Race" = 'ADAC Großer Preis der Tourenwagen';

Question: What is the date that Fabrizio Giovanardi Christian Abt won?
SQL: SELECT "Date" FROM "2-17669275-2" WHERE "Winning driver" = 'Fabrizio Giovanardi Christian Abt';