Career
Lahaye"s career began in karting, in which he competed between 1995 and 2001. He then took part in Formula France and French Formula Renault. He moved on to the Eurocup Mégane Trophy in 2005 for Technical 1 Racing, finishing his first season ninth overall.
2008 saw him switch to sportscars, driving in the Le Mans Series for Saulnier Racing.
Racing a Pescarolo-Judd with Pierre Ragues, he finished fifth in the LMP2 standings. He also took part in his first 24 Hours of Le Mans with the team together with Ragues and China"s Congfu Cheng, finishing 18th overall and third in LMP2.
In 2009 he continued with the team (now renamed OAK Racing) in the LMP2 class of the Learning Management System, with Karim Ajlani as his teammate. They scored two podium finishes from the five races, finishing ninth in the final standings.
He and Ajlani were joined at Le Mans by Guillaume Moreau, but the car retired from the race.
In 2010 he partnered Nicolet in the Le Mans Series, and finished the year third in LMP2. At Le Mans he finished seventh overall and second in LMP2, sharing with Moreau and January Charouz. In 2011 he contested the LMP1 category of the Intercontinental Le Mans Cup with OAK. However, a heavy accident in qualifying at Spa left him with two broken vertebrae, a broken hand and an injured knee, and he would miss the 24 Hours of Le Mans.
In 2012 he is competing in the FIA World Endurance Championship in OAK"s Morgan LMP2 alongside Nicolet and Olivier Plaza