In the first outing at the Karlskoga Sweden GP, Bonnier had the pole but an off course excursion on the first lap caused him to finish second to David Piper in a Ferrari 330P3/4.
Na primeira saída no GP Karlskoga en Suecia, Bonnier tiña a pole, pero unha excursión fóra da pista na primeira volta levoulle a terminar segundo tras David Piper nun Ferrari 330P3 / 4.