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_10527215_3 ( report VARCHAR, pole_position VARCHAR, winning_team VARCHAR )

### Question ###
What's the report on Penske Racing winning while the pole position was Al Unser?

### Accurate SQL ###

SELECT COUNT(report) FROM table_10527215_3 WHERE pole_position = "Al Unser" AND winning_team = "Penske Racing"