In 1931, co-drivers were eligible to score championship points, but only from the car they were assigned to at the start, and provided that they had completed a stint in the car during the race.
В 1931 году оба гонщика, участвовавшие в гонке на одной машине, получали очки, но при условии, что в гонке на другом автомобиле они не выступали.