user: Question: Scott Dixon had how many Grid positions?
Columns: ['Fin. Pos', 'Car No.', 'Driver', 'Team', 'Laps', 'Time/Retired', 'Grid', 'Laps Led', 'Points']
Types: ['real', 'real', 'text', 'text', 'real', 'text', 'real', 'real', 'text']
Sample row: [1.0, 9.0, 'Scott Dixon', 'Target Chip Ganassi', 80.0, '1:51:58.5533', 5.0, 15.0, '50']
SQL:

assistant: SELECT COUNT("Grid") FROM "Table" WHERE "Driver" = 'Scott Dixon';