user: Question: What is the high grid total for Maserati?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Juan Manuel Fangio', 'Alfa Romeo', 35.0, '2:47:26', 2.0]
SQL:

assistant: SELECT MAX("Grid") FROM "Table" WHERE "Constructor" = 'Maserati';