Added support.

The variable M differential lock.

High driving stability and optimum traction, above all when pulling out of curves - the variable M differential lock takes care of that. Using this function effectively prevents spinning of the drive wheels. Even when the wheel grip varies enormously, such as on snow, gravel or ice, the M differential lock supplies that decisive extra portion of pulling power. Sporty drivers appreciate the system because it optimises handling while at the same time supporting the thrust from the rear-wheel drive.