Facts about the M1 from SCOTT26

The M1 will feature a Personalization Program
You have your central duct which will allow air a , priority for the High Performance Intercooler. Brake air ducts will provide cooling for the six piston (cermamic?) brake discs , on the bonnet there is an additional two ducts one for cosmetic symmetery the other for air. Two air intakes on the front wings bring the typical M look with the bar that incorporates the side indicator light now placed on top instead of striking through. Link
Because the rear wings of the car appear more muscular due to the width of the rear track. The designers incorporated the rear vents similar in appearance to what is featured on the X5 and X6 M models to help break up the heaviness of the rear bumper which made the car look too bulky at the rear.


Proof that BMW is developing an M1 and not a 135isThe test mules that have been spotted have an M differential and M3 rear camber arms.
The test mules have visible air ducts in the rear bumper underneath the camouflage. Scott (BMW insider) did originally state that the M1 would have rear air ducts to break some of the heaviness from the bigger rear fenders.


The front fender on this test mule isn't flush with the door (there's a visible gap). This suggest that there is a cover underneath the camouflage to cover the M air ducts