I'm happy to confirm that BMW showed a beautiful Sao Paulo Yellow M4 Comp to a very anxious crowed during the morning session at Monticello. They even commented on reading
this thread and being amused by the speculation.
They had a security team escort 4 people at a time into a private viewing area after handing over all electronic devices. There they had a BMW team available to answer questions.
The car makes a statement for sure. Especially in that outstanding yellow color. The grills are enormous and by my taste seem unnecessary and out of place compared to the rest of the car. Carbon roof, diffuser, amazing quad exhaust finished very similar to the M8 Comp. I was so impressed by the interior. The optional carbon seats were a pale blue and body color and looked stunning.
M Track Days is already one of the best ways to spend 4 hours and $500. Being one of the first people in the US to see the M4 is icing on the cake.
I've owned 4 F8X, currently in a M4 CS. And chances are I'll deal with the stupid grill and hope to compliments aggressive looks with a lip or something.