CREATE TABLE table_16691 ("Rd." FLOAT, "Grand Prix" CLOB, "Date" CLOB, "Location" CLOB, "Pole Position" CLOB, "Fastest Lap" CLOB, "Winning Driver" CLOB, "Constructor" CLOB, "Report" CLOB)

Who drove the fastest lap for round 8?
SELECT "Fastest Lap" FROM table_16691 WHERE "Rd." = '8'
SELECT "Fastest Lap" FROM "table_16691" WHERE "Rd." = '8'