M Compound 4-wheel ventilated anti-lock disc brakes (Dynamic Stability Control (DSC), including Brake Fade Compensation, Start-off Assistant, Brake Drying, and Brake Stand-by features; with M Dynamic Mode) =M4
M Sport brake, which combines high performance standards with sporty styling. Aluminium four-piston fixed callipers at the front and two-piston fixed callipers at the rear, and large brake discs, combine extremely low weight with very short stopping distances. = 选配。 其他功能= none.