From 1998 to 2002, Philippe was active in karting and moving in 2003 to the U.S. Barber Dodge Pro Series. He finished ninth overall and drove it once on the podium.
From the following year, the young Frenchman in the Champ Car World Series worked. In 2004 he was engaged by Rocket Sports Racing. Since his team was not satisfied with his performance, he was released after five races. After a short pause, Philippe moved to Conquest Racing and was at the end of the season 16th in the standings. In 2005 he stayed with Conquest Racing and was able to improve end of the season in 13th place overall. In 2006, Philippe to HVM Racing. After two podium places managed to win him the second to last race of the season in Surfers Paradise, and he finished fourth in the overall standings. Philippe is since this triumph the youngest winner of the Champ Car World Series. He could repeat this success in 2007 not because he initially got no cockpit due to financial problems. At season's end, he took part in two races for Conquest Racing. 2008 Philippe returned to HVM Racing, but since the Champ Car World Series was the end of February combined with the IndyCar Series, he drove 15 As Philippe not included in the IndyCar Series only at the farewell race of the Champ Car World Series in Long Beach and was was, he had no cockpit again.
In summer 2008, Philippe drove two races for the team of Borussia Dortmund in the newly founded Superleague Formula. In addition, Philippe played in the 2008/2009 GP2 Asia Series season for the first race weekend in Shanghai for ART Grand Prix. Philippe did not score and it was replaced by the Venezuelan Pastor Maldonado.
2009 Philippe joined with HVM Racing for the first time at the Indianapolis 500, and finished the race as a result of wall contact as 25 His next assignment in the IndyCar Series should he, starting time for Conquest Racing, contest at the event at Infineon Raceway, but heavy after a collision with Will Power in training as he could, as well as his opponent, an injury not participate in the race. Thus it remained 35th in the championship with 16 points and overall
- 2002: Karting
- 2003: Barber Dodge Pro Series (No. 9)
- 2004: Champ Car World Series (No. 16)
- 2005: Champ Car World Series ( # 13 )
- 2006: Champ Car World Series (4th place )
- 2007: Champ Car World Series ( # 19 )
- 2008: GP2 Asia; Superleague Formula
- 2009: IndyCar Series ( No. 35 )