CREATE TABLE table_58406 ("Race Name" CLOB, "Circuit" CLOB, "Date" CLOB, "Winning driver" CLOB, "Constructor" CLOB, "Report" CLOB)

Who was the winner of the XII Spring Trophy race with BRM as the constructor?
SELECT "Winning driver" FROM table_58406 WHERE "Constructor" = 'brm' AND "Race Name" = 'xii spring trophy'
SELECT "Winning driver" FROM "table_58406" WHERE "Constructor" = 'brm' AND "Race Name" = 'xii spring trophy'