In 1967 Beltoise competed in three Grands Prix with a Formula Two Matra MS7 1.6 litre Cosworth, and finished seventh at both Watkins Glen and Mexico City. He also won the 1967 Buenos Aires Grand Prix, which was not part of the World Championship calendar. In 1968 Beltoise began the season again with an F2 car but from the second race onward had Formula One machinery and finished second in the 1968 Dutch Grand Prix. In 1969 he was placed in Ken Tyrrell's Matra team, whilst the works V12 engine was developed driving alongside Jackie Stewart, and finished second in the French grand Prix. Beltoise returned to the works Matra team for both 1970 and 1971. In 1971, racing in the Matra sports car team, he was involved in the accident in which Ignazio Giunti died during the 1000 km Buenos Aires, and his international racing license was suspended for some time.