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_38 ( number_of_cars VARCHAR, car__number VARCHAR, year_started VARCHAR )

### Question ###
HOW MANY CARS HAD A CAR # SMALLER THAN 7 AND STARTED ON 2010?

### Accurate SQL ###

SELECT number_of_cars FROM table_name_38 WHERE car__number < 7 AND year_started = 2010