Active M Differential.
More traction and greater stability when cornering and even on snow, gravel or ice. The Active M Differential supplies optimum traction and supports the dynamic qualities of the rear-wheel drive – both when accelerating out of corners and manoeuvring on slippery surfaces.
The Active M Differential even affords precise handling in cases of extreme lateral acceleration or uneven road surfaces. Here the active system is connected to the DSC by an electronic control element and proactively imposes an intelligent locking action – completely independent of the differences in rotational speed between the right and left rear wheel. The results of this channelling of drive power are optimum traction, better handling as well as increased agility.

