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_46 (engine VARCHAR)
### Question:
Engine 2.5 20v d has what engine code?
### Answer:
SELECT engine AS code FROM table_name_46 WHERE engine = "2.5 20v d"