CREATE TABLE table_204_511 (id NUMBER, "number" NUMBER, "driver" CLOB, "entrant" CLOB, "chassis" CLOB, "engine" CLOB, "tyre" CLOB)

tony bettenhausen and paul russo drove cars with what kind of engine ?
SELECT "engine" FROM table_204_511 WHERE "driver" = 'tony bettenhausen'
SELECT "engine" FROM "table_204_511" WHERE "driver" = 'tony bettenhausen'