The 2025 Kwik Fit British Touring Car Championship (commonly abbreviated as BTCC) was a motor racing championship for production-based touring cars held across England and Scotland. The championship featured a mix of professional motor racing teams and privately funded amateur drivers competing in highly modified versions of family cars which are sold to the general public and conform to the technical regulations for the championship. The 2025 season was the 68th British Touring Car Championship season, the 15th season for cars conforming to the Next Generation Touring Car (NGTC) technical specification.
This was the first season using 100% renewable fuels, with the hybrid boost being removed and being replaced with turbo boost. While the amount of power boost stayed the same the weight will be reduced by . In another change to the 2024 season all uses of boost were removed from the timing screens, however was still be visible to viewers at home and at the track.
Entering/re-entering BTCC
Changed teams
Leaving BTCC
Team changes
Mid-Season Changes
The 2025 calendar was announced on 30 April 2024.