Onboard lap of Willow Springs Raceway in a Porsche Taycan GTS. Recorded using the Porsche Track Precision App. The Sport Chrono package must be installed in the vehicle to use the app. The Porsche Track Precision App is a digital driving coach. It helps Porsche drivers with an affinity for motorsport to improve their personal driving style on the race track by collecting and visualising the relevant data. It can be used to optimise braking points, fine-tune turn-in points and identify driver errors. The best lap driven by the driver – in other words, the driver’s own limit – serves as a reference value. The Porsche Track Precision App accesses control unit information in the vehicle via a Wi-Fi connection with the Porsche Communication Management (PCM) system. The app reads out vehicle position, speed, rpm, braking force, steering angle, longitudinal and lateral acceleration, and other driving-relevant telemetry data. Compared to tracking purely via a smartphone, the PTPA collects more comprehensive and precise data thanks to its direct connection to the vehicle. This allows for optimum analysis. The Porsche Track Precision App determine