CREATE TABLE table_60593 ("Name" TEXT, "Circuit" TEXT, "Date" TEXT, "Winning driver" TEXT, "Winning constructor" TEXT, "Report" TEXT)

What Winning driver has a Winning constructor of sunbeam?
SELECT "Winning driver" FROM table_60593 WHERE "Winning constructor" = 'sunbeam'
SELECT "Winning driver" FROM "table_60593" WHERE "Winning constructor" = 'sunbeam'