The front has new intakes larger than the units on the GT3 RS. And at the rear are hidden vents at both sides of the bumper, which typically indicate a turbocharged engine. These aren’t found on the GT3 RS.
Another key difference is the position of the exhaust tips. On the mule there is an exhaust tip at each side of the car whereas on the GT3 RS they sit at the center.
GT2s benefit from the same engine feature as the 911 Turbo but with even more power. With the latest Turbo S delivering as much as 580 horsepower from its twin-turbocharged 3.8 liter flat 6, expect the GT2 to have around 620 hp.
Already confirmed by the 911’s chief engineer Andreas Preuninger, the new GT2 is expected to be the last member of the 991 series 911 family. Porsche already has mules for the next generation car testing on public roads.