A system for enhancing driving dynamics and stability, PTV Plus offers variable distribution of engine torque to the rear wheels and electronically controlled rear differential. Depending on the steering angle, steering speed, throttle pedal position, yaw velocity and vehicle speed, PTV Plus optimizes steering response and precision by applying brake pressure to the left or right rear wheel, as required.
Specifically, this means that when entering a corner at high speed, moderate brake pressure is applied to the inside rear wheel. This transfers drive torque to the outside rear wheel which supports the steering motion of the car, thereby improving its cornering dynamics.
At slow and medium speeds, PTV Plus considerably enhances agility and steering precision. At high speeds, during fast cornering and under wheel spin, the electronically controlled rear differential ensures additional stability. Also on variable-grip surfaces, in the wet and on snow, PTV Plus – combined with Porsche Traction Management (PTM) and Porsche Stability Management (PSM) – provides a major contribution to active safety.
In off-road terrain, PTV Plus reduces wheel spin on the rear wheels – even when towing heavy trailer loads. The electronically controlled rear differential can be fully locked using the off-road control on the center console.
Optional for the Cayenne, Cayenne S, Cayenne GTS and Cayenne Turbo.