Porsche 718 Cayman GT4 RS review - sensational mid-engined Porsche driven on road and track

What happens when you put the screaming 500-horsepower flat six engine from the latest Porsche 911 GT3 into Porsche's brilliant-handling mid-engined sports coupe, the 718 Cayman? With the launch of the Porsche 718 Cayman GT4 RS, which comes to the UK market this spring, we've finally found out.

This is a real wild child of a two-seater from Porsche's Weissach-based GT department. It revs to 9000rpm; it'll accelerate to within touching distance of 200mph, with room enough to run into; it has proper motorsport-developed aerodynamics and adjustable track suspension; and it's the first Cayman ever to wear Michelin's very stickiest road-legal Pilot Cup 2 R tyres.

On the market from £108,370, this car is the fastest and most hardcore Cayman created so far in the car's seventeen-year, multi-model-generation history. Fully-loaded examples will cost in excess of £140,000; which begs the question, might this car be even better than the celebrated 911 GT3? Matt Saunders took to the track at Estoril, and its surrounding roads, to find out.

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Autocar, the world's leading motoring magazine and website, delivers industry-leading news, the most in-depth car reviews and opinion from our team of experts. Our presenters include some of the world's top motoring journalists who have unrivalled access to the world's fastest, rarest, most exotic and most exciting cars on some of the world's best roads and race tracks.

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