For the 1969 championship, the Matra team chose to not compete in Formula One. Instead of competing, Matra worked with Ken Tyrrell's 'Matra International' team. They built a new DFV powered car with structural fuel tanks, even though it would only be able to be used for a single season. Stewart won the 1969 title easily driving the new Cosworth-powered Matra MS80. Stewart's title was the first won by a French chassis. It was the only one won by a chassis built in France. It was a very special event for a team and a constructor that had only entered Formula One the year before.