At the 2018 Geneva Motor Show, Bugatti unveiled the track focused version of the Chiron, named the Chiron Sport. Mechanically the car is identical to the regular version, generating 1,500 PS (1,105 kW; 1,480 hp) from a quad-turbocharged W16 engine but is 18 kg (40 lb) lighter due to a lighter, more unrestricted exhaust system, the extensive use of carbon fibre, and a stiffer suspension in order to increase the cornering ability of the car while maintaining its grand touring characteristics. The steering of the car has also received modifications and a torque vectoring system to control the power sent to each wheel of the car for improved handling in tight corners has been added. Aerodynamic improvements and light weight have been given special consideration in order to keep the car competitive on the race track. The Chiron Sport became available in late 2018 for an additional US$400,000 on the standard Chiron.
In April 2022, Bugatti issued a factory recall for a 2018 Chiron, built 16 November 2017, due to a loose front frame support screw.