On which circuit was the lites 1 race one winning team #66 Gunnar Racing?
CREATE TABLE "table1_26638600_3" (
  "rnd" real,
  "circuit" text,
  "lites_1_race_one_winning_team" text,
  "lites_2_race_one_winning_team" text,
  "lites_1_race_two_winning_team" text,
  "lites_2_race_two_winning_team" text
);
SELECT "circuit" FROM "table1_26638600_3" WHERE "lites_1_race_one_winning_team"='#66 Gunnar Racing';