Porsche’s taking cues from the Chevrolet Corvette’s optional built-in racetrack data logger, but with a smartphone twist: A new Porsche app turns your Apple or Android pocket computer into a dash cam, lap timer, and telemetry recorder, so you can analyze your track day like Roger Penske.
The newly-updated Porsche Track Precision app pairs with the optional Sport Chrono package in the Cayman GT4 and the 911 GT3 and GT3 RS to give you data-heavy insight into your lap times and racing lines, and video playback with telemetry, steering, and throttle/brake input, all on your tiny screen. About 60 racing circuits worldwide are preloaded; if the track you’re at isn’t one of them, an initial warm-up lap will teach the course to your phone’s GPS system. Then you just snap your phone into a dashboard or windshield mount with the camera aimed out the windshield, and you’re ready to record your lap.
For even more of that hot data action, Sport Chrono–equipped Porsches come prewired for the installation of an optional lap trigger, a rear-side-window-mounted light sensor tripped by a device placed at the start/finish line of a circuit.
Once your lap is recorded, you can play the video back with an overlay showing lap times, steering/throttle/brake input, speed, gear selection, rpm, g-force, and your position in front of or behind your previous lap’s ghost car. Here, let none other than Walter Röhrl demonstrate:
All you need to get started is the app (available for both Apple and Android), and, well, a Porsche Cayman GT4 or 911 GT3 with the Sport Chrono package. Hey, at least the app is free!
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