user: ### NOW ANSWER:
Question: What is the highest grid that has 55 laps?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['David Coulthard', 'McLaren - Mercedes', 71.0, '1:39:00.834', 5.0]
SQL:

assistant: SELECT MAX("Grid") FROM "Table" WHERE "Laps" = 55.0;