Porche Mission S Supercar Concept Revs to 8000Instagram / PorschePorsche has been hinting at a new range-topping supercar situated above the 911 all year—an exciting possibility that escalated in a big way when the brand announced on Wednesday that it plans to actually unveil just such a concept this October. And on Friday, less than a week before that reveal, the Stuttgart automaker has teased a major detail of the car itself: how high its engine will rev.In a video uploaded to Instagram, the company showed off a hybrid physical-digital gauge cluster with the "Mission S" name underneath the tachometer. Things get more interesting from there as the tach activates, showing the car first in Park, then Drive, then in first gear moving quickly toward an 8000-rpm redline. The cluster and other gauges physically move back and forth, suggesting a setup building on the moving tachometer frame seen on a handful of performance Lexus models like the LFA.While the 8000-rpm redline does not necessarily tell us what engine is in the car, it is notably a different redline from any current Porsche production car. Both the naturally-aspirated 911 GT3 and turbocharged 911 Turbo engines rev above 8000, while the brand's suite of V-8s in top-flight Cayennes and Panameras top out well below that number. That suggests a new powertrain, or at least a significantly altered variant of an existing one. (Porsche reportedly considered a flat-8 supercar in the past, a layout that would certainly be welcome here.) And unfortunately, the video doesn't contain any engine sounds to help tip us off as to what's under the hood.The indicators for both Park and Drive gear selections suggest that the engine is mated to an automatic transmission rather than a manual; given that this is a modern Porsche, that is likely to be a PDK unit. An automatic transmission on the concept does not necessarily rule out a manual in the future, but it does suggest that a six-speed like the one available on the current 911 Carrera S, 911 Carrera T, and 911 GT3 is not a lock to reach a production version of whatever the Mission S becomes.Porsche has still not confirmed whether or not the Mission S will turn into a real production car, but the brand's lineup changes designed to move back up-market suggest that a supercar is coming sooner rather than later. Considering it will follow up hypercars like the 918 Spyder and Carrera GT, expectations are high for the concept debuting on October 15th.If You Can Only Own One Car, Make It One of TheseThese Are the Most Popular Cars by State