What engine did the mclaren mp4-20 use?
CREATE TABLE table_name_40 (
    engine VARCHAR,
    chassis VARCHAR
)
SELECT engine FROM table_name_40 WHERE chassis = "mclaren mp4-20"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What engine did the mclaren mp4-20 use? ### Input: CREATE TABLE table_name_40 (
    engine VARCHAR,
    chassis VARCHAR
) ### Response: SELECT engine FROM table_name_40 WHERE chassis = "mclaren mp4-20"