The latest incarnation of the most potent Porsche 911 has broken cover at this year’s E3 (Electronics Entertainment Expo) in Los Angeles, and it appears – as hinted at by previous spyshots – to be a riot of scoops and vents, topped off by a massive rear wing.

Here, we can see the squared-off front bumper with huge air intakes. With the front fender vents adopted from the naturally-aspirated GT3 RS, it appears Porsche considers the front dive planes to be no longer necessary. Around the back, the test mule’s oversized twin exhaust outlets have made it to the show car, along with the rear decklid-mounted aerofoil that is larger than the item on the GT3 RS.

The performance flagship of the 911 range is powered by a development of the 3.8 litre twin-turbo flat-six from the marque’s 911 Turbo S, which Porsche says produces more than 641 hp and 750 Nm of torque in this application. Drive is sent to the rear wheels only, with a seven-speed PDK double-clutch gearbox with electronically-controlled limited slip differential the sole transmission of choice.

Performance figures aren’t final, though the top twin-turbo 911 is said to do 0-100 km/h in under three seconds, 200 km/h in under nine, with a top speed of over 338 km/h. The hardest of the hardcore 911s also comes equipped with a water-sprayed intercooler system akin to the one found in BMW’s M4 GTS, utilising a five-litre water tank to cool the engine’s air intake temperatures by up to 15 degrees to maintain its considerable outputs.

Target weight for the GT2 RS is below 1,500 kg, though GT department boss Andreas Preuninger tells Evo that weight reduction hasn’t required the complete removal of soundproofing. Thinner, smartphone-esque Gorilla Glass is used in place of Perspex, the latter being illegal for road cars in the United States.

The option to remove air-conditioning, sound and infotainment systems is still available, though for weight loss purposes a Weissach pack is also available for the GT2 RS. Thus equipped, the GT2 RS drops a further 30 kg thanks to magnesium wheels (themselves saving 12 kg from the standard wheel set), a titanium half-cage (saving seven kg), and a carbon-fibre roof that is lighter than the magnesnium item on the GT3 RS.

Tyres are bespoke Michelin Pilot Sport Cup 2 tyres measuring 265/35 ZR20 and 325/30 ZR21 front and rear respectively, mounted on 20-inch wheels in front and 21-inch wheels at the back. Further chassis details have yet to be revealed, though a GT3 RS-derived suspension layout and rear-axle steering system can be expected here, like how the previous 997 GT2 RS adopted GT3 RS suspension components.

Production of the 991-generation GT2 RS could be limited, if the previous 500-unit only car is indicative of Porsche’s plans for this car. Pricing also has yet to be revealed, though naturally it will be at the top of the 911-shaped family tree – the car is tipped for a Frankfurt Motor Show launch this year.

GALLERY: Porsche 911 (991) GT2 RS spyshots