user: Question: What was the highest grid for Patrick Carpentier?
Columns: ['Driver', 'Team', 'Laps', 'Time/Retired', 'Grid', 'Points']
Types: ['text', 'text', 'real', 'text', 'real', 'real']
Sample row: ['Paul Tracy', 'Forsythe Racing', 81.0, '1:44:12.348', 3.0, 32.0]
SQL:

assistant: SELECT MAX("Grid") FROM "Table" WHERE "Driver" = 'Patrick Carpentier';