What makes the M more special than the X6 V8 Twin-Turbo? Well, as far as appearance goes the typical M side vents and dual-exhaust on each side.
As we mentioned many times before, some say that the BMW X6M will be powered by a 5.0-liter V10 with 373kW and 520Nm of torque, even though we believe that a twin-turbo engine will be more suitable for the job. The 4.4 V8 Twin-Turbo can be the ideal choice since the car already weighs around 5,000 lbs and placing a heavy V10 engine in it, would not make much sense.
Everything is being kept under the table as of now, so unfortunately no other details are available, including pricing.