Mezue ahịrịokwu na-esonụ: Percival Guy Tunmer (1 Disemba 1948 <unk> 22 June 1999) bụ onye ọkwọ ụgbọala si South Africa. O sonyere na otu Formula One World Championship Grand Prix, ya
agbụrụ ụlọ na 1975, na-anya Lotus 72 maka otu obodo, Team Gunston. Ọ gbara onye nke iri na otu, na-enwetaghị akara mmeri ọ bụla. O mechara nwee ihe ịga nke ọma na Formula Atlantic.