Sauber Motorsport AG was a Swiss motorsport engineering company and race team. Founded by Peter Sauber as PP Sauber AG in 1970, the team produced sports cars and later Formula One race cars as an independent constructor. In endurance racing, the team achieved two world championships and overall victory at the 1989 24 Hours of Le Mans with Mercedes-Benz. After entering Formula One in 1993, the team transformed multiple times but exited the sport in 2025 as the fourth-oldest constructor in history by races started. The team and its assets were acquired by Audi AG in 2024 to form the chassis construction and sporting basis of the Audi F1 Team.
Each of the team's cars, with the exception of cars built by BMW Sauber, were designated a number proceeded by the letter C to honor Peter Sauber's wife. Starting with the C1, which was built in his parent's garage, Sauber's early cars competed in local Swiss championships. The team debuted in FIA competition with the Sauber C5, which competed in the 1977 24 Hour of Le Mans. Its most successful sports car, the Sauber C9, won two consecutive world endurance championships and brought Mercedes back to the World Sportscar Championship as Team Sauber Mercedes.
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