CREATE TABLE table_name_81 (year INT, engine VARCHAR, chassis VARCHAR)

What is the latest year that has an engine of cosworth v8, with a chassis of hesketh 308e?
SELECT MAX(year) FROM table_name_81 WHERE engine = "cosworth v8" AND chassis = "hesketh 308e"
SELECT MAX("year") FROM "table_name_81" WHERE "chassis" = "hesketh 308e" AND "cosworth v8" = "engine"