CREATE TABLE "race_calendar_and_results" (
  "round" real,
  "circuit" text,
  "date" text,
  "pole_position" text,
  "fastest_lap" text,
  "winning_driver" text,
  "winning_team" text
);

Question: Name the winning driver for mobilecast impul and twin ring motegi
SQL: SELECT "winning_driver" FROM "race_calendar_and_results" WHERE "winning_team"='mobilecast impul' AND "circuit"='twin ring motegi';

Question: Name the winning driver for round 7
SQL: SELECT "winning_driver" FROM "race_calendar_and_results" WHERE "round"=7;