<prompt> Qedela umusho olandelayo: I-Grand Prix ka-1959 yabona uShelby egibela i-Aston Martin DBR4 e-Dutch Grand Prix ngoMeyi, elandelwa yi-British Grand Prix e-Aintree ngoJulayi. UShelby wabe esegibela iGrand Prix yasePortugal ngo-Agasti, elandelwa yi  <response>: I-Gran Prix yase-Italy ngo-September. 