From what year is the engine with engine code M57D30?
CREATE TABLE table_name_21 (year VARCHAR, engine_code VARCHAR)
SELECT year FROM table_name_21 WHERE engine_code = "m57d30"
### Context: CREATE TABLE table_name_21 (year VARCHAR, engine_code VARCHAR) ### Question: From what year is the engine with engine code M57D30? ### Answer: SELECT year FROM table_name_21 WHERE engine_code = "m57d30"