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Discussion Starter · #1 ·
Hi all,


Just got my 718 GTS (will post pictures soon). Like most of you , before I got it, I read a lot about it. I was amazed about the power to weight ratio. On Porsche's web site, the 718 Cayman GTS with PDK weights 1405 kg (Unladen weight (DIN)). Most articles suggest numbers around 1350 kg for the 718. I understand that it also can depend on options, the transmission and the engine.


On the registre paper of my car, my car weights 1490 kg. How can we explain this difference? I don't know if they weight all cars and if this number is accurate. Or could it be that the 1405 kg is without all the various liquids. What does "Unladen weight" means?


Any other explanations?


Do you know how much does your 718 weigh?


Thanks in advance!
 

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Hi all,


Just got my 718 GTS (will post pictures soon). Like most of you , before I got it, I read a lot about it. I was amazed about the power to weight ratio. On Porsche's web site, the 718 Cayman GTS with PDK weights 1405 kg (Unladen weight (DIN)). Most articles suggest numbers around 1350 kg for the 718. I understand that it also can depend on options, the transmission and the engine.


On the registre paper of my car, my car weights 1490 kg. How can we explain this difference? I don't know if they weight all cars and if this number is accurate. Or could it be that the 1405 kg is without all the various liquids. What does "Unladen weight" means?


Any other explanations?


Do you know how much does your 718 weigh?


Thanks in advance!
Liquids likely account for a lot of it. "Unladen" typically implies "dry" as part of its meaning -- no fluids in the car -- as well as no occupants, accessories (example: it probably does not count the tool kit, air compressor, fix-a-flat, floor mats, etc.) and the like.

Another consideration: options. Most add weight to the car, though not in significant amounts unless it's a large item. Example: The base Cayman's 18" wheels will likely weigh up to 10-12 pounds (that's what, 4.5-5.5 Kg) per corner less than 20" wheels because of the extra weight of both the 20" wheel and the 20" tire. Another example: PSE likely adds several kilograms because of the extra resonator, valve, and piping.
 
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From Car & Driver Test

The C&D Track Sheet for the base Cayman with PDK gives a total weight of 3140 with a breakdown for the 4 corner numbers. I think this indicates that they weighed the car during the test and are not reporting a previously published number from another source.
 

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The C&D Track Sheet for the base Cayman with PDK gives a total weight of 3140 with a breakdown for the 4 corner numbers. I think this indicates that they weighed the car during the test and are not reporting a previously published number from another source.
Correct....track sheet weights are different for all 4 variants of the 718. For differences between cars with the same engine/turbo, PDK is the biggest factor. Wheel/tire size impacts weight, as noted. After that, I'd guess options involving multiple electric servo-motors (e.g. power seat). Unique roadster factors (power top servos and added frame bracing) seem to be offset by the lighter roof itself as there is no appreciable coupe/cabriolet difference as with other cars, incl. 911. Maybe because Boxster was originally designed as a roadster?....

https://s3.amazonaws.com/amv-prod-c...ew-car-and-driverporsche718caymansman2017.pdf
https://s3.amazonaws.com/amv-prod-c...w-car-and-driverporsche718boxsterspdk2017.pdf
https://s3.amazonaws.com/amv-prod-c...ew-car-and-driverporsche718caymanspdk2017.pdf
https://s3.amazonaws.com/amv-prod-c...view-car-and-driverporsche718boxsters2017.pdf
 

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Discussion Starter · #5 ·
Correct....track sheet weights are different for all 4 variants of the 718. For differences between cars with the same engine/turbo, PDK is the biggest factor. Wheel/tire size impacts weight, as noted. After that, I'd guess options involving multiple electric servo-motors (e.g. power seat). Unique roadster factors (power top servos and added frame bracing) seem to be offset by the lighter roof itself as there is no appreciable coupe/cabriolet difference as with other cars, incl. 911. Maybe because Boxster was originally designed as a roadster?....

https://s3.amazonaws.com/amv-prod-c...ew-car-and-driverporsche718caymansman2017.pdf
https://s3.amazonaws.com/amv-prod-c...w-car-and-driverporsche718boxsterspdk2017.pdf
https://s3.amazonaws.com/amv-prod-c...ew-car-and-driverporsche718caymanspdk2017.pdf
https://s3.amazonaws.com/amv-prod-c...view-car-and-driverporsche718boxsters2017.pdf



I thank you all for your explanations.


ZuffenHouse, Thanks for your four links. Here are the numbers for each one:


a) CS, manual: 3087 lbs = 1403 kg
b) BS, PDK: 3159 lbs = 1436 kg
c) CS, PDK: 3169 lbs = 1440 kg
d) BS, PDK: 3122 lbs = 1419 kg


At 1490 kg (if this number is correct), my CGTS (PDK) would still be a little heavier compared to these numbers. I don't have power seats. I have PDK, -20mm Sport PASM and we now know that the GTS has a third radiator. Maybe other things add more weight to the GTS.


I guess the interior carbon fiber options do not compensate enough

It is still a light car, but not as much as I thought. Anyway, the important thing is that it behaves like a very light vehicle... It is quite a beast !!!



I would be curious to hear from other GTS owner to see if they are that much heavier or if 1490 kg is just a mistake
 

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Sorry to bring up a dead thread but I figured it's better than starting a new one about the exact same thing. Just had my 2017 PDK Cayman S weighed. I reverted the car back to full 100% stock. Notable options that impact weight:

20" wheels
No power seats (standard 2 way sport seats plus)
Full leather interior (supposedly lighter than standard)
PDK
Bose
Standard non-sport exhaust
No other luxury options

Weight: 3210lbs with 60L of fuel

This was actually better than I thought. Depending on if I'm going to keep the car or not, I'm looking to hopefully do a 100lbs weight reduction without sacrificing anything (cats, exhaust, lithium battery make up the bulk of it).

Anyone else have weights for their car? I'm not sure how accurate the scales are. This was done at a Porsche indy shop that leans more towards track/race setup (they've got a cup car racing team too).
 

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Hmm, mine weighs 718. (Just a bit of covid-19 humor.)
 
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According to Good to Know, my base Cayman is somewhere between 2,943 lbs and 3,164 lbs. I can't help to think that with my basic base build, that I'm close to 3,000 lbs., depending on what PASM, Sports Chrono, and Sport Exhaust add to it.
 

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Well...2018 base..leather..manual...larger tank...Bose...20 in. wheels...that's about it..can't remember how much fuel but not below a 1/2 tank...3185 with me in it @ 175 nekked and easily 185 dressed so 3k or a bit less...on a professional state inspected scale.
 

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Discussion Starter · #11 ·
Weight: 3210lbs with 60L of fuel



Hahahah! FazedChicken, thank you for your post ! I just got it !! On the registration papers, the displayed weight is 1490 kg and it is probably due to the fact that I received my 718 CGTS with a full gas tank. It's almost 60 kg more. Some explained that the weight announced by the manufacturer is the empty weight (without liquids). Thus, if the gasoline alone weighs close to 60 kg, this can explain the difference of almost 100 kg between the empty weight and the weight with all liquids. OK! So it is a relatively light car...
 

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Well...2018 base..leather..manual...larger tank...Bose...20 in. wheels...that's about it..can't remember how much fuel but not below a 1/2 tank...3185 with me in it @ 175 nekked and easily 185 dressed so 3k or a bit less...on a professional state inspected scale.
Thanks for the info! Unfortunately for me, I can add another 60 or so pounds to your weight, but that might still keep me at 3,000 pounds!
 
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