Cayman GT4: Where are we up to now?
- Thread starter Motorhead
- Start date
I wonder what it is - small discs, doesn't look particularly low, just testing front bumper air flow? Carscoops pics (over in the long thread) show novel spoiler
fbr
New member
Look like they are the standard S brakes with the standard, albeit painted black, 19" S wheels. On a different point re your brakes/weight distribution for the 981, they appear to be heavily biased to the front and have a tendency to lock up under extremes of braking and road surfaces. FBR
Frank, I can't say I understand the physics or engineering but actually the braking is very stable. Extreme examples include from >135 mph to around 70 at the end of the Lavant Straight at Goodwood followed by entry into Chicane from 85 down to 45 mph. The pedal does not have an immediate bite but has good feel, you can take braking very close to the ABS threshold and the brakes just keep going without fading. It is far more stable under braking than my old 997 GTS. Ralph
Not exactly the GT4 Spyder you were hoping for Rob. More like a Boxster S with Cayman GT4 running gear [note the 6-pot caliper/steel front brakes] and front PU and featuring a more aggressive duck-tail rear spoiler. Looks very nose-down in the side pic. Perhaps Porsche are working in the wings on a Spyder-type hood. The good news is that the test car had a 3-pedal layout, so it looks as though manual and PDK 'boxes will feature on the GT4. Jeff
Hi Jeff - Definitely not the Spyder I am still hoping for unless this is a cunning way of sorting everything whilst keeping the Spyder roof & humps to the bitter end of development programme [
] http://www.topspeed.com/cars/porsche/2016-porsche-boxster-gt4-ar166617.html
] http://www.topspeed.com/cars/porsche/2016-porsche-boxster-gt4-ar166617.html
It might be a 981.2 Turbo test vehicle?
It's a fair point. If the a GT4 moniker is used on the Boxster, does all the speculation that the name infers homologation for GT4 racing of the Cayma etc etc get called into question. But I think Porsche is very good at keeping secrets (sometimes too good alongside what they leak which leads to wild speculation to fill in the gaps) so I guess there'll be a few surprises, possibly both some overwhelming and some underwhelming when the new model arrives. Sometimes dealers don't have a clue what's coming until very late, or at least claim to know nothing and won't share anything. Other times they are very loose lipped long before a new launch. Surely it's HQ that controls that both ways and the dealers could tell us about the engine and transmission by now if they were allowed to be as loose lipped about that as they are about the car's existence. This Boxster mule does throw open a whole new angle of speculation. If it's a twin car to the Cayman GT4 then I doubt Porsche would make an extreme race car version of a convertible, so the Cayman may not be either. Or maybe it's just a mule to test air flow through the new front end but used on a Boxster to throw you way off the scent. Can't see a Boxster having the GT3-esque ventilation at the top of the front PU, only because they've always reserved that for track focused coupes and they've never produced a track focused convertible (911 Speedsters are lightweight but not track focused like an RS or GT'x' model I would argue).
Depends what you mean by quick, an Elise would be quicker than the Audi round a track...
I mean quick on the roads where the majority will spend 99% of their life[
] User friendly enough as a daily driver and all mod cons expected in the 21st century Low maintenance low CO2's and good mpg all things sadly lacking in an Elise today and I am an ex Lotus owner and very much a fan of the company despite it's struggles literally from birth 
I agree with all that 6. Why would Porsche mix labels between the two cars when each label is unique? So it's going to be a Cayman GT4 and a Boxster "Spyder", but exactly how the latter is going to turn out is still open to question and there's still a long time to go before its introduction. One thing for certain is that if Porsche is serious about taking another car racing it'll be the Cayman rather than the Boxster. Jeff
Chris_in_the_UK
New member
I suspect the Boxster is simply being used to test aero and flow of a the particular front end it has had grafted on.
Porsche needs to take a leaf out of Audi's styling book to make the GT4 front mesh grilles more presentable..! JeffORIGINAL: daro911http://www.autocar.co.uk/car-news/geneva-motor-show/hot-audi-rs3-sportback-revealed-362bhp-plus-first-ride-review Will it be quicker than this VAG Turbo [
Indeed. I also think that the Spyder doesn't need to have the same ingredients as the GT4 to be successful. In my mind it's predominantly a fair weather sports car for great driving roads (and a damn good one at that). 350hp is plenty fast enough for most for that purpose. Plus it doesn't need to be set up in the extreme for track like a GT4, GT3 or GT3 RS. I can easily see the next Spyder having the Cayman GTS engine (if 4 pot turbos are not introduced for top models) whereby the GT4 could be way different and not follow a similar blueprint like the 987 R did to the 987 Spyder.
Back on to brakes, I read somewhere on the web (so it must be true) that the total area of the front v rear pistons is as important as the size of the disks - the former being force and the latter heat management. So fitting 991S 6 pot calipers v 4 pot standard and retaining OEM 4 pot rears would imbalance front/rear braking but that retaining 4 pot each end but increasing disc size would retain normal brake balance. Any views from those who understand these matters?
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