The was the 46th
British Touring Car Championship (BTCC) season.
- Dunlop were confirmed as the sole tyre supplier, replacing BF Goodrich
- The series included a race meeting at Rockingham for the first time, replacing Knockhill
- Qualifying sessions at each race meeting lasted 20 minutes (compared to the 43 minutes of 2002) and only determined the starting grid for the first race
- Finishing positions of race 1 determined the grid for race 2
- Mandatory pit-stops were introduced for all Touring class cars in both races
M = Manufacturer Team
I = Independent Team
P = Production Class Team
