The biggest change is up front. The older lower fascia jutted out in the center, and the smaller intakes flanking the central opening protruded alongside it. The new lower fascia is more conventional, with an inset central intake and concave secondary inlets. The outer intakes change shape as well, with extensions around their rims to deepen the intakes. It looks more aggressive, for sure, but is also a significant improvement over the older, more bulbous snout.
The front running lights are also significantly revised, shrinking down into little horizontal eyebrows above the outer lower intakes. This compares favorably to the much larger, machete-blade-shaped numbers on the current GT3 and GT3 RS.
Back around the engine, the rear bumper vents are slimmer and sharper, and the vent that sits underneath the spoiler on the GT3 models moves up into the ducktail, more like in the GT3 RS, although more gracefully integrated. The lower license plate cutout now incorporates the lower reflectors. A much less complex lower bumper surrounds the dual center-exit pipes. The taillights also gain scalloped inboard lips and a little more three-dimensional contour, but are otherwise similar. The profile and rear wing look largely the same.
Considering these are all evolutionary tweaks on an existing theme, the overall affect is greater than the sum of its parts. Side-by-side, the old GT3 looks like it has a lot of farkles tacked on. The new GT3 incorporates all those elements a lot better. And more important for enthusiasts than the cosmetic enhancements, we also know that Porsche will offer the next GT3 with a manual gearbox, as is right and proper.