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_40 (car__number INTEGER, sponsor VARCHAR)
### Question:
What is the highest car number sponsored by Post-It / National Guard?
### Answer:
SELECT MAX(car__number) FROM table_name_40 WHERE sponsor = "post-it / national guard"