Rob Walker changed strategy for 1963, employing Jo Bonnier and returning to the Cooper chassis (the Swede had raced for Walker at Oulton Park the previous year), but once more results were sparse and mechanical failures frequent.
Rob Walker cambiou a estratexia para 1963, contratando a Jo Bonnier e volvendo ao chasis Cooper (o sueco correra con Walker en Oulton Park o ano anterior), pero unha vez máis os resultados foron pobres e os fallos mecánicos frecuentes.