CREATE TABLE table_67023 ("Year" FLOAT, "Chassis" CLOB, "Engine" CLOB, "Start" CLOB, "Finish" CLOB, "Entrant" CLOB)

What Engine has a Finish of 21?
SELECT "Engine" FROM table_67023 WHERE "Finish" = '21'
SELECT "Engine" FROM "table_67023" WHERE "Finish" = '21'