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New Porsche Cayman GT4: fresh pictures of testing mule

Published: 20 August 2018

► Latest Cayman GT4 spotted
► Hot 718 is coming soon
► 4.0-litre flat six engine is likely

Another week, another new Porsche spotted – but this time it’s a Cayman, not the new 911 – our snappers have captured. This isn’t just any Cayman though, it’s the Porsche Cayman GT4, the flat-six-packing flagship of Porsche’s mid-engined sports car.

And yes, you read that correctly. According to our intel, the GT4 will side-step the forced-induction and downsizing seen throughout the rest of the Cayman range.

The new pictures don’t reveal much extra intel, other than we should probably be seeing the car sooner rather than later. Either way, it’s very similar to the mule we saw testing at the 'Ring earlier in the year. Just look at those huge brake discs, super-thin tyres and enormous rear-wing!

Keep reading for everything else we know about the Cayman GT4.

Read our full review on the basic Porsche 718 Cayman


Porsche 718 Cayman GT4: six-cylinder power confirmed

Andreas Preuninger, head of the Porsche GT models, has gone on record as saying that the GT4 will be naturally aspirated, pointing to a detuned version of the 4.0-litre flat-six found in the new 911 GT3.

Expect a new six-speed manual transmission, like that found in the latest GT3. Yep, Porsche continues to offer the purists' solution - and long may that continue...

We drive the last Porsche Cayman GT4 in 2015

The new Porsche 718 Cayman GT4

As for power? The outgoing Cayman GT4 boasted 385bhp, and that suggests the new one will likely deliver the full 400bhp, if not a little more.

Brawny engine and drivetrain implants will take care of the firepower, but the chassis and bodywork will be given a significant makeover too; expect lightweighting and exotic materials galore to make the coupe perform, handle, corner and brake better than ever.

We drove a Cayman GT4 Clubsport racer to give you some idea of what to expect. Rear our review here.

When can I buy the new 718 Cayman GT4?

Porsche is the past master of stoking interest in its model ranges as they gently age. With facelifted 718s already doing the rounds of testing, we'd suggest the new GT4 is likely to be a 2019 model year entry. Despite this car looking close to production, word is it won't be shown in 2018.

The outgoing GT4 wasn't a limited series production car and sales figures show that it actually out-sold the 2.7 in the last-generation Cayman. An extraordinary - and heartening - fact. More than 500 were registered in the UK.

Spy photos from Germany: the 2018 Porsche 718 Cayman GT4

There's some pretty serious aero on the prototypes we've seen: check out the full-width rear wing and diffuser on our spy photos (above). Twin exhuasts complete the look.

Other telltale giveaways that this is a GT-series Porsche are the lightweight alloy wheels wrapped in liquorice-thin, track-focused tyres, the lower ride height and Porsche's composite brake discs the size of brass band cymbals.

This car has a rollcage installed, but we expect that's to protect occupants when it's testing on the Nurburgring circuit. Note also the GT2 RS-style front splitter - designed to be so strong, that a man can stand on it without deforming. All the better to keep a constant downforce even at high speeds.

Yep, it looks like Porsche might have another mouth-watering driver's car on its hands...

Read Porsche reviews by CAR magazine

By Curtis Moldrich & Tim Pollard

Our reviewers: fresh perspectives for inquisitive minds

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