I haven't seen any models of the cars for years after the regulations changed - I don't think it was worth it for the diecast manufacturers, the super tourers were used worldwide so they could produce loads of different liveries all based on a single casting. Since then the BTCC has been out on its own for regulations so the potential production run for models is much less.
I've been looking for either diescasts or resin kits of the current BTCC cars but I can't find any
