user: Question: What's the report on Penske Racing winning while the pole position was Al Unser?
Columns: ['Rd', 'Name', 'Pole Position', 'Fastest Lap', 'Winning driver', 'Winning team', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Datsun Twin 200', 'Johnny Rutherford', 'Unknown', 'Johnny Rutherford', 'Chaparral', 'Report']
SQL:

assistant: SELECT "Report" FROM "Table" WHERE "Pole Position" = 'Al Unser' AND "Winning team" = 'Penske Racing';