 Born in Aigle, Vaud, Buemi graduated from karting and spent 2004 and 2005 in German Formula BMW, finishing third and second in the championship respectively.He was also runner up in the 2005 FBMW World Final.Following a single race in Spanish Formula Three in 2005, Buemi moved up to the Formula Three Euroseries for 2006, finishing 12th in the championship, ceding 11th place to Charlie Kimball on countback.