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_74 (grid VARCHAR, constructor VARCHAR, driver VARCHAR)

### Question ###
Which grid is constructed by Maserati and driven by Oscar Alfredo Gálvez?

### Accurate SQL ###

SELECT grid FROM table_name_74 WHERE constructor = "maserati" AND driver = "oscar alfredo gálvez"