Its main rivals will be Panamera Turbo/S, CLS 63/65 and S7/RS7.
It can't cost as a 1M, it is supossed to be like a vector for the image and the sales for BMW
It is also a 4 for door saloon, but it clearly more lifestyle oriented and this is the reason for nameing it a "coupe".
Also 5 and 7 series are more bussiness oriented, so they can go very well together.