The Automobile Club de l'Ouest (A.C.O.), creator and organizers of the “24 heures du mans”, was born in 1906 from the passion of those who recognized that the invention of the automobile had the potential to revolutionize the 20th century.

For more than 100 years, the ACO has worked to implement the following objectives:

Throughout its history and thanks to generations of motorists that have placed their confidence in the ACO, the club has focused its full energy on serving the users of the public motorway system. As such, these actions have reinforced the legitimacy and the central role of the club, and created an essential and unmistakable partnership in the fight against road accidents.

The ACO is also the founder of the association “40 Million Motorists", a non-profit group that since 2005 is the designated voice to address the government on major issues of road safety, mobility and sustainable development.

To be a member of the ACO is to be a part of the legend of Le Mans and its century of sport, but also to think and act daily on behalf of the harmonious development of the automobile in French society.