フランス西部自動車クラブ
This was a watershed year for the Automobile Club de l'Ouest (ACO) with a number of major changes happening all at once. It saw the end, after nine years, of the partnership with founding-sponsor Rudge-Whitworth, as money problems drastically affected the British wheel-parts company. The Cup was thus renamed the Biennial Cup of the Automobile Club de l'Ouest.