 Nyorai kupfuurira kweiyi ndima - Mukundi wokutanga weSwitzerland Grand Prix akanga ari Jo Siffert. Mumutambo waakatora mwaka gumi akakunda mijaho miviri Britain 1968uye Austria 1971 kubva ku96 kutanga, nekuguma kwakanakisisa kwechikwata chechishanu muna 1971. Upenyu hwake hwakapfupikiswa zvichitevera tsaona pamakwikwi eVictory Race muna Gumiguru 1971. 