Exagon Engineering is a French auto racing team which is based in Magny-Cours. The team was founded by director Luc Marchetti in 2004, and is managed by former racer Cathy Muller who is the older sister of successful touring car driver Yvan Muller. Exagon Engineering are best known for preparing cars to enter in the FIA World Touring Car Championship, although they also run cars in other events such as rallycross, sportscar racing and ice racing.