CREATE TABLE table_16146 ("Rd" FLOAT, "Name" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning driver" TEXT, "Winning team" TEXT, "Report" TEXT)

In the Datsun Twin 200 race, what was the fastest lap?
SELECT "Fastest Lap" FROM table_16146 WHERE "Name" = 'Datsun Twin 200'
SELECT "Fastest Lap" FROM "table_16146" WHERE "Name" = 'Datsun Twin 200'