Table schema:
CREATE TABLE table_name_99 (grid INTEGER, laps VARCHAR, constructor VARCHAR, driver VARCHAR)

Question: What is the highest grid value with constructor Mclaren - Mercedes, driver David Coulthard, and has fewer than 66 laps?
SQL: SELECT MAX(grid) FROM table_name_99 WHERE constructor = "mclaren - mercedes" AND driver = "david coulthard" AND laps < 66