CREATE TABLE table_16694 ("Rd." FLOAT, "Grand Prix" TEXT, "Date" TEXT, "Location" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Driver" TEXT, "Constructor" TEXT, "Report" TEXT)

How many events did nigel mansell drive the fastest and a mclaren - honda win?
SELECT COUNT("Grand Prix") FROM table_16694 WHERE "Constructor" = 'McLaren - Honda' AND "Fastest Lap" = 'Nigel Mansell'
SELECT COUNT("Grand Prix") FROM "table_16694" WHERE "Constructor" = 'McLaren - Honda' AND "Fastest Lap" = 'Nigel Mansell'