CREATE TABLE table_41554 ("Year" FLOAT, "Circuit" TEXT, "Winning drivers" TEXT, "Winning constructor" TEXT, "Regulations" TEXT, "Report" TEXT)

What is the latest year that has ferrari 166 fl as the winning constructor?
SELECT MAX("Year") FROM table_41554 WHERE "Winning constructor" = 'ferrari 166 fl'
SELECT MAX("Year") FROM "table_41554" WHERE "Winning constructor" = 'ferrari 166 fl'