What's the finish for car number 6?
CREATE TABLE "indy_500_results" (
  "year" text,
  "car_number" text,
  "start" text,
  "qual_speed" text,
  "speed_rank" text,
  "finish" text,
  "laps_completed" real,
  "laps_led" real
);
SELECT "finish" FROM "indy_500_results" WHERE "car_number"='6';