 Ramba uchiverenga ndima iyi - Pakutanga kwemwaka wa1971 akatenga motokari yainzi March 711, yaakaronga kudzokera nayo kuUnited States kunomhanya muU.S. Formula 5000 series. Asati adaro, akapinda muMonaco Grand Prix, Dutch Grand Prix, United States Grand Prix, uye Canadian Grand Prix mumutambo unobhadharwa nemari yepachivande waMarch. Akadzokera kumakwikwi eU.S. neCanada muna 1972. Pashure pacho, akamhanya mumotokari dzeGT. 