Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_21 (engine VARCHAR, rank VARCHAR, entrant VARCHAR)
### Question:
What engine what in the vehicle when adt champion racing ranked in 1st place?
### Answer:
SELECT engine FROM table_name_21 WHERE rank = "1st" AND entrant = "adt champion racing"