Mugore ra1963, MacDonald akazozivikanwa munyika yose pashure pokutamba makwikwi eUSRRC neNASCAR kwemavhiki mashanu.
Chokwadika, shanduro yakaoma zvikuru yemutsara wacho ndeiyi "Mukuwa kwa1963, MacDonald akakwira mukurumbira wenyika pashure pokutyaira Shelby King Cobra CM / 1/63 kukunda mumakwikwi maviri makuru uye akapfuma mumigwagwa muAmerica - Los Angeles Times Grand Prix uye Monterey Pacific Grand Prix. "