He made his debut in Formula 3 in 1969 and came second to Ronnie Peterson in the Swedish Championship that year, before winning the Championship in 1970 and 1971.
Fixo o seu debut en Fórmula 3 en 1969 e chegou segundo tras Ronnie Peterson no Campionato Sueco ese ano, antes de gañar o Campionato en 1970 e 1971.