Nyorai kupfuurira kweiyi ndima - Mumvuri wakarasikirwa nemakwikwi maviri okutanga emwaka wa1973, asi chikwata chakasvika muSouth Africa nokuda kweSouth African Grand Prix
nezvikamu zviviri zvevatyairi vayo. Mutyairi anotungamira weMumvuri aive aimbove mutyairi weBRM uye Team Lotus mutyairi Jackie Oliver achityaira imwe mota aive George Follmer uyo, kunyangwe aive mutsva muFormula One, aive neruzivo rwakakura mumitambo yemitambo. Follmer akapedza ari wechitanhatu muSouth Africa, uye akatevera kuita uku nechitatu munhangemutange inotevera. Oliver akawanazve nzvimbo yechitatu nokuda kwechikwata mumakwikwi asati apera egore muCanada. Shadow akapinda mumotokari yechitatu yaBrian Redman kumakwikwi ekupedzisira egore asi akakundikana kuwedzera kumapoinzi echikwata egore rino. Shadow akapedza gore racho aine mapoinzi mapfumbamwe uye nzvimbo yechisere mumakwikwi evagadziri.