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_57 (engine INTEGER, model VARCHAR, year_from VARCHAR)
### Question:
Which Engine has a Model of sl500, and a Year From larger than 1999?
### Answer:
SELECT MAX(engine) FROM table_name_57 WHERE model = "sl500" AND year_from > 1999