How to distinguish the new RS from an already formidable 992 GT3? With 525hp at 9,000rpm, a centrally-mounted radiator and three times the aerodynamic downforce.

It's a compelling combination for a car that Porsche itself reckons will match the cornering speed of a motorsport-grade 911 Cup - on slicks. But the new Rennsport model still needs to prove itself in the driving. Only then can it claim to live up to a £178,500 asking price and its status as the foremost track-orientated Porsche 911. PH sent John H along to Silverstone to find out...

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