Question: Who was the co-driver in the DNF position in the GT1 class?
SQL: SELECT "Co-Drivers" FROM "2-1226503-2" WHERE "Pos." = 'DNF' AND "Class" = 'GT1';

Question: Which co-driver was part of team Martini Lancia earlier than 1986?
SQL: SELECT "Co-Drivers" FROM "2-1226503-2" WHERE "Year" < 1986.0 AND "Team" = 'Martini Lancia';

Question: The Le Mans Porsche Team Joest Racing is in which class?
SQL: SELECT "Class" FROM "2-1226503-2" WHERE "Team" = 'Le Mans Porsche Team Joest Racing';