CREATE TABLE table_204_864 (id NUMBER, "pos" NUMBER, "class" CLOB, "no" NUMBER, "team" CLOB, "drivers" CLOB, "chassis" CLOB, "engine" CLOB)

what type of engine did drivers use the most in this race ?
SELECT "engine" FROM table_204_864 GROUP BY "engine" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "engine" FROM "table_204_864" GROUP BY "engine" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY