Important component of all 911 all-wheel models:
The electronically controlled, fully variable multi-plate clutch of PTM derived from the 911
Through the continuous monitoring of the driving status, the different driving situations can be reacted to: sensors control, amongst others, the continuous rotational speed of all four wheels, the longitudinal and lateral acceleration of the vehicle, as well as the steering angle.
If, for example, the rear wheels threaten to spin under acceleration, then a stronger intervention of the multi-plate clutch distributes more propulsion power to the front.
This is how PTM, together with