<prompt> Ngwala go tšwela pele bakeng sa serapa se - Sehla sa Moputso o Mogolo wa 1959 se bone Shelby a otlela Aston Martin DBR4 go Dutch Grand Prix ka May, gomme a latelwa ke British Grand Prix  <response>: kua Aintree ka July. Shelby ka morago o ile a otlela ka Portuguese Grand Prix ka August, a latelwa ke Grand Prix ya Italy ka September. 