It will be available in estoril when the M Sport trim models are out. Estoril is only available in that trim level, every generation of M Sport trimmed cars features at least 1 exclusive colour named after a race track.
Supposedly there will be a full fat M version of this. I think it could be a cracker as having had my first encounter with a 4 series today it's like a land yacht. The M2 and M235i will be a lot more nimble. I just hope they improve the current steering as it's pish.