 He made his IndyCar Series debut in 2009 at the Indy Grand Prix of Sonoma at Infineon Raceway with Andretti Green Racing.Montagny has signed up to drive the Girondins de Bordeaux entry in the Superleague Formula for the 2010 season.In May 2014, Andretti Autosport announced that Montagny would race for them in the inaugural season of the FIA Formula E Championship in 2014–15.