François-Xavier Demaison

François-Xavier Demaison is Technical Director for Williams Racing, having joined the team in 2021.

François-Xavier, best known as FX, has spent his entire career within motorsport, working with both Renault and Peugeot on Formula One, Touring Car and World Rally projects before being appointed as Chief Rally Engineer for the Subaru World Rally team in 2006. In 2010, he joined Petter Solberg World Rally team as Technical Director.

FX moved to Volkswagen Motorsport in 2011, before becoming Technical Director with overall responsibility for all of the brand’s motorsport projects in 2016. Whilst at Volkswagen Motorsport, FX was responsible for the technical development of the ground-breaking and technology leading, ID.R electric race car, that achieved multiple records at Pikes Peak and the Nurburgring. FX was also responsible for the dominant Polo R WRC, which won all three titles in the World Rally Championship four times in a row from 2013 to 2016.

In his current role, FX has overall responsibility for the technical operation of the business including the Design and Aerodynamic functions.