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Porsche Stability Management (PSM)

911 Targa 4S
Porsche 911 Targa 4S - Porsche Stability Management (PSM)

Porsche Stability Management (PSM)

As standard, the new 911 Targa 4 models are equipped with Porsche Stability Management (PSM) which maintains stability even at the limits of dynamic driving performance.

Sensors continuously monitor the direction, speed, yaw velocity and lateral acceleration of the car. PSM uses this information to calculate the actual direction of travel at any given moment. If the car begins to oversteer or understeer, PSM applies selective braking on individual wheels to restore stability.

Under acceleration on wet or low-grip road surfaces, PSM improves traction using the Automatic Brake Differential (ABD) and Anti-Slip Regulation (ASR). The result is a high level of driving stability and safety combined with extraordinary agility.