CREATE TABLE table_29225103_2 (gm_winning_team VARCHAR, ep_winning_team VARCHAR)

Who the GM winning team when the EP winning team was #37 Porsche?
SELECT gm_winning_team FROM table_29225103_2 WHERE ep_winning_team = "#37 Porsche"
SELECT "gm_winning_team" FROM "table_29225103_2" WHERE "#37 Porsche" = "ep_winning_team"