Those aerodynamic aids are leftovers from the current model, though. In fact, much of what we see here is current-generation Turbo S equipment, including the lights, bumpers, and the rear wing. Where this car differs is in the fenders. Porsche bolted up some very aggressive fender flares to widen the body and fit fat tires to this test car. This should help give the new Turbo S more grip and make it quicker on the track. The air intakes are much more aggressive on this car than the current Turbos, as well as the prototype Turbo we saw earlier.
Outside of the wide body, there isn't much else to spot on this 911. We currently expect to see the new base model 911 sometime next spring at the earliest. Using that timeline, the 911 Turbo and Turbo S will probably be revealed later in the year, perhaps winter of 2018. We also anticipate the new generation of 911 Turbo cars will produce more than 600 horsepower. And whatever power the regular 911 Turbo makes, the Turbo S will make more.