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 ( laps INTEGER, constructor VARCHAR, grid VARCHAR )

### Question ###
What is the low lap total for minardi - motori moderni, and a Grid smaller than 18?

### Accurate SQL ###

SELECT MIN(laps) FROM table_name_44 WHERE constructor = "minardi - motori moderni" AND grid < 18