The kidney grills shape may look the same but they are different. Notice the two pics, the prototype has 11 slats each as compared to the production which has nine. Just an observation.
Also the lips on the front air dams are not parallel like the M6's which I am surprised a bit. The front design lacks cohesiveness which is surprising for a /// design.
That's my 2c.
2007 E92 6MT - Silverstone II with /// Performance Exhaust with ACM Test Pipes and BPM Sport Stage II Dev-Tune - Proper engine warm up, 12-monthly oil change, Castrol TWS 10w-60
2014 F15 X5 3.0d