Looked at the wheel settings and the current aero cover set up most closely resembles what I'll have with the Rimetrix covers. So I'll keep the config the same. Rimetrix claims efficiency very close to the OEM aero covers. Not going to stress much if it's off by 10-20 miles. Weather & driving style will have far greater effect. Now to install them!Im curious.... I know the car wants to know about your wheel / tire / cover configuration so it can accurately measure and predict the impact that has on your driving range. Do you happen to know how you plan to "tell" your M3 about these new covers?