The Kumho BMW M Class is a performance one-make race series newly launched in 2025, featuring vehicles from the BMW M lineup. The class is included in two major championships, the Inje GT Masters and the O-NE Superrace Championship. In the Inje GT Masters, the competition is held in a time trial format where drivers compete for the fastest lap time, while in the O-NE Superrace Championship, it takes the form of a sprint race with all cars starting simultaneously.

As the title sponsor, Kumho Tire contributes to the successful organization and continued development of the championship. All participating vehicles are equipped with ECSTA high-performance racing tires supplied on a paid basis. Through its sponsorship and tire supply for this series, Kumho Tire aims to further strengthen its position as a premium brand while contributing to the growth of domestic motorsports.