CREATE TABLE table_48458 ("Year" CLOB, "Date" CLOB, "Circuit" CLOB, "Winning driver" CLOB, "Winning constructor" CLOB, "Report" CLOB)

Which circuit did Peter Whitehead win?
SELECT "Circuit" FROM table_48458 WHERE "Winning driver" = 'peter whitehead'
SELECT "Circuit" FROM "table_48458" WHERE "Winning driver" = 'peter whitehead'