Head to Head McLaren-Ford driver comparison for 1968 season.
[{'label': 'Bruce McLaren', 'data': [12, 14, 3, 5, 6, 8, None, 9, 5, 5, 5]}, {'label': 'Denny Hulme', 'data': [3, 2, 2, 4, 4, 4, 4, 4, 2, None, 3]}, {'label': 'Dan Gurney', 'data': [None, None, None, None, None, None, None, None, 24, 20, 21]}]