Overall i like the design behind this car though i can't say it would stick out so much as a "normal" version of the car maybe an M-sport. But it reminds me a lot of the audi s3 sedan from behind. Not that it is a bad thing but BMW maybe could have done it a little bit different. Not that that it looks bad but can't wait for a real version of this car again we know concepts rarely make in to production this would probably be no different in that aspect.
The more i look at it the more it realized this car is made up from 4 different cars..It has the front from a 7 series, lights from 2 series GT Version, 2 Series side profile, 4 series back end and the 1Ms duck tale. Clever work BMW