<prompt> Bhala ukuqhubeka kwalesi sigaba - Isizini yeGrand Prix yango-1959 uShelby washayela i-Aston Martin DBR4 kwiGrand Prix yaseDashi ngoMeyi, kwalandelwa yiGrand Prix yaseBrithani e-Aintree ngoJulayi. UShelby wabe esegibela iGrand Prix yasePortugal ngo-Agasti, elandelwa yiGrand Prix yase-Italy  <response>: ngoSeptemba. 