Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_44 (engine VARCHAR, year VARCHAR, chassis VARCHAR)

### Question ###
What type of engine does a 1951 alfa romeo 159m chasis have?

### Accurate SQL ###

SELECT engine FROM table_name_44 WHERE year = 1951 AND chassis = "alfa romeo 159m"