PORSCHE has delivered what is likely to be the final installation in the 991.2 911 legacy with an even faster GT3 RS that has more power, a revised chassis and optimised weight for a track-focused edge that promises to topple records in typical motorsport-derived Porsche fashion.

With another 15kW squeezed from its naturally aspirated 4.0-litre flat-six, the updated Porsche GT3 RS has a mammoth 383kW, thanks partly to its dizzying 9000rpm redline, while an updated seven-speed PDK dual-clutch transmission and specially formulated sticky rubber add to the vicious performance enhancements.

Stump your cash now and you’ll take delivery of a sparkly new GT3 RS in the final quarter of this year.

As part of the updates, the standard front 265/35 R20 tyres are now made from a new compound for “enhanced agility and steering”, while the improved rear 325/30 R21 rubber boosts traction, says Porsche.

On the inside, full racing seats are crafted from carbonfibre for minimum weight but maximum support in extreme driving manoeuvres, while further weight is saved in true RS form with the fitment of basic door panels, pull loops and nets in place of handles and storage pockets.

For no extra cost, customers that like to head to the track can upgrade to the Clubsport pack, which swaps the diminutive rear seats for a colour-coordinated roll bar, manual fire extinguisher, six-point harness and modifications to allow the installation of a battery disconnect switch.

Porsche says combined cycle fuel consumption is rated at 12.8L/100km – 0.1 litres thirstier than the previous GT3 RS, but you don’t care do you?