Matra, which had entered Formula One the previous year, withdrew their works team from the 1969 championship and focused on their partnership with Ken Tyrrell. Stewart won the 1969 title easily with the new Matra MS80, which corrected most of the weaknesses of the MS10. Stewart's title was the first won by a French chassis, and the only one won by a chassis built in France. It would also be the only time a constructor won in Formula One without fielding a works team.