Then, by the age of nine, Sergio was already racing in shifter karts, achieving four victories already in his first year of junior category.
Kwathi lapho eneminyaka eyisishiyagalolunye ubudala, uSergio wayesevele egijima ngama-shifter karts, ethola ukunqoba okune kakade onyakeni wakhe wokuqala esigabeni sabancane.