Its functionality differs significantly from the normal “PSM On” mode. When the PSM Sport mode is activated an indicator in the instrument cluster and the yellow “PSM Off” lamp are lit to inform the driver. The new PSM Sport mode lets drivers with racing aspirations approach the performance limits of the 911 even closer – such as on a circuit track. Compared to PSM On, the new function permits much larger yaw movements about the vertical axis and more slip at the drive wheels. This makes it unnecessary for even ambitious sports car drivers to fully deactivate PSM. However, the PSM Off mode is still available, which is selected by a long activation of the PSM button. But even in the PSM Off mode and new PSM Sport mode, hard braking within the ABS control range activates the full range of stabilising assistance by PSM until the brakes are released.