The most powerful Porsche 911 ever will feature in the upcoming Forza Motorsport 7 game – and it's made a surprise real-world debut at a gaming convention in Los Angeles. Porsche teamed up with Microsoft to reveal the range-topping 911 at the E3 expo where it was described as a 'monster' by Forza's creative director, Dan Greenawalt.

The GT2 RS will feature on the cover of the racing game when it arrives on PC and Xbox One on October 3, followed by a debut on the new Xbox One X on November 7th.

Technical details of the car itself haven't been revealed – but we can see an appearance best described as 'GT3 RS on steroids', with a massive rear wing, an aggressive front bumper and a carbonfibre roof.

2018 Porsche 911 GT2 RS at E3
2018 Porsche 911 GT2 RS at E3
2018 Porsche 911 GT2 RS at E3

The GT2's rear end and interior were out of sight for its reveal at E3, but in-game footage reveals large exhaust tips and a stripped-out cabin with a roll cage and a pair of serious body-hugging seats.

We know that the biturbo 3.8-litre sourced from the Turbo S and upgraded for the GT2 RS produces in excess of 641hp and 553lb ft of torque. Expect it to be paired with a PDK gearbox, while some outlets are reporting a power output close to 700hp for the six-cylinder engine. One thing's for sure, when the GT2 RS is revealed in full it'll become the most powerful road-going Porsche 911 ever made.

We expect to be able to get up close to the GT2 RS, and find more about its technical intricities, at September's Frankfurt Motor Show.

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Gallery: 2018 Porsche 911 GT2 RS at E3