You can add the headlights but they arent cheap of course.
I suppose a hidden compartment can be fitted also, but you cant get much in it, I dont use mine, its too small to be of much use, packet of Polo's maybe.
Sport button I thought would be standard on the S? but if its not there then the wiring isnt either and it might be a job to add it now.
Mind you, is this brand new F56? model, they might have changed all the features from what they were and the Sport button is now a chargeable option, theyre crafty like that and the dealers arent up to speed on whats what half the time either, all they want is an order.