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.
E92 M3 2007 - ///PE with Test Pipes and BPM Stage II; CF Interior & Splitters; CIC with Connected Drive