The upcoming, 992-generation Porsche 911 will soon be upon us, and with development cars for the mainstream models having been photographed nearly undisguised, it’s now the turn of the hotter GT3 version as it takes to the circuit for performance testing.

Pictured here at the Nurburgring, the 992-generation GT3 is in what will be familiar units for the eventual production cars, and the development vehicle appears to apply the proven GT3 recipe for exterior bodywork to the forthcoming generation of 911s. This includes a deeper set of air intakes in its front bumper with a more pronounced front splitter and vents near the leading edge of the bonnet.

At its rear end, the 992 GT3 test mule seems to be wearing some form of swan-neck rear wing, where the main wing element appears to be suspended from the top of the structural uprights rather than placed on top of them, as traditionally has been done, though it won’t be the eventual production form.

The lower section of the rear bumper adopts the familiar, centrally-mounted dual exhaust exits, which poses questions regarding the new car’s engine – does the similarity mean the GT3 will retain the naturally-aspirated flat-six, or make the much-rumoured move to turbocharging? Our spy photographer sources suggest the former.

Other drivetrain details have also yet to be confirmed, though in the interests of making gains for both performance and efficiency, the presence of a dual-clutch transmission is a near-certainty – the three-pedal manual gearbox is still unconfirmed.

Either way, the new car will improve upon the current, 991-generation model‘s outputs of 500 hp (or 520 hp in the case of the GT3 RS) and 460 Nm of torque; a peak figure in the region of 550 hp is likely, according to sources.

GALLERY: Porsche 911 GT3 (992) spyshots

GALLERY: 991.2-gen Porsche GT3 RS in Malaysia