CREATE TABLE "race_winners" (
  "year" text,
  "driver_s" text,
  "class" text,
  "vehicle" text,
  "race_title" text
);

Question: What class of car had the XI Coppa Acerbo title?
SQL: SELECT "class" FROM "race_winners" WHERE "race_title"='xi coppa acerbo';

Question: Who won the III Coppa Acerbo title?
SQL: SELECT "driver_s" FROM "race_winners" WHERE "race_title"='iii coppa acerbo';

Question: What's the name of the title for the Maserati A6GCS?
SQL: SELECT "race_title" FROM "race_winners" WHERE "vehicle"='maserati a6gcs';

Question: Who won the XXIV Gran Premio di Pescara in the sports car class?
SQL: SELECT "driver_s" FROM "race_winners" WHERE "class"='sports car' AND "race_title"='xxiv gran premio di pescara';