Even if they are one of the most aggressive performance models on the market, BMW M3 and M4 will receive some M Performance aerodynamic components, some of which will improve the airflow and the downforce.
 
Exterior
 
A front attachment made from polyurethane (PUR), a carbon rear diffuser, a carbon rear spoiler, PUR side skirt attachments and a rear spoiler for the BMW M3. To improve aesthetics, BMW offers tri-colour side decals with “M Performance” lettering.
 
Interior 
 
The BMW M Performance steering wheel with Alcantara covering, carbon trim and Race Display is also offered on the M3 and M4. The painted carbon steering wheel trim carries “M Performance” lettering. The Alcantara covering for the steering wheel rim has contrast stitching in the three BMW M colours. And the thumb rests feature a pair of embedded buttons used to activate Efficient Dynamics mode, Sport mode and Race mode.
 
During track sessions, Race mode allows lap times to be displayed and stored in minutes, seconds and hundredths of seconds. The top speeds and maximum lateral/longitudinal acceleration figures for the most recent 50 laps completed can also be stored.
 
Engine and Exhaust
 
The M Performance package also comes with a new engine sound, thanks to a lightweight flap control exhaust system that comprises a stainless-steel exhaust system and a silencer made completely from titanium and displaying M Performance lettering when viewed from the rear.