CREATE TABLE table_66903 ("Year" FLOAT, "Entrant" TEXT, "Chassis" TEXT, "Engine" TEXT, "Points" FLOAT)

what is the average year for 0 points and ferrari v8?
SELECT AVG("Year") FROM table_66903 WHERE "Points" = '0' AND "Engine" = 'ferrari v8'
SELECT AVG("Year") FROM "table_66903" WHERE "Engine" = 'ferrari v8' AND "Points" = '0'