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 cars_data (weight INTEGER, cylinders VARCHAR, year VARCHAR)

### Question ###
What is the smallest weight of the car produced with 8 cylinders on 1974 ?

### Accurate SQL ###

SELECT MIN(weight) FROM cars_data WHERE cylinders = 8 AND year = 1974