CREATE TABLE table_204_473 (id DECIMAL, "pos" TEXT, "no" DECIMAL, "driver" TEXT, "constructor" TEXT, "laps" DECIMAL, "time/retired" TEXT, "grid" DECIMAL, "points" DECIMAL)

how many drivers drove a ferrari in the race ?
SELECT COUNT("driver") FROM table_204_473 WHERE "constructor" = 'ferrari'
SELECT COUNT("driver") FROM "table_204_473" WHERE "constructor" = 'ferrari'