SELECT pole_position FROM table_26267607_2 WHERE winning_driver = "Bruno Spengler" AND circuit = "Showevent Olympiastadion München"
Di sirkuit showevent Olympiastadion München, di mana pengemudi yang menang adalah Bruno Spengler, apa posisi tiangnya?
CREATE TABLE table_26267607_2 (pole_position VARCHAR, winning_driver VARCHAR, circuit VARCHAR)