In 1969, driving the Matra MS80-Cosworth, Stewart had a number of races where he completely dominated the opposition, such as winning by over two laps at Montjuïc, a minute in front at Clemont-Ferrand and by more than a lap at Silverstone. With additional wins at Kyalami, Zandvoort, and Monza, Stewart became world champion. Until 2005 he was the only driver to have won the championship in a car built by a French constructor and remains the only driver to win the world championship in a car built in France as well as in a car entered by a privateer team. Also that year, Stewart led at least one lap of every World Championship Grand Prix, and remains the only driver to achieve this feat.