user: Question: What is the highest grid value with constructor mclaren - mercedes, driver david coulthard, and has fewer than 66 laps?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 67.0, '1:42:00.307', 2.0]
SQL:

assistant: SELECT MAX("Grid") FROM "Table" WHERE "Constructor" = 'mclaren - mercedes' AND "Driver" = 'david coulthard' AND "Laps" < 66.0;