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Old 02-04-2023, 09:59 AM
  #16  
CodyBigdog
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Originally Posted by CanAutM3
Do you have evidence of this? Because I’ve also read it’s more in the 45~50lb range.

Yep, exactly.

He may be right, but I looked - a lot - couple years back when building my car, and found nothing from Porsche…but other cars, with similar sized openings, list about a 50lbs difference between metal and glass sunroofs. I suspect that for the average driver, they won’t notice any difference.

As for what an additional 50lbs on the highest part of the car might do to handling characteristics, well, I have no idea…but do know it definitely won;’t help. I have a couple of very serious trackers buddies, and they are always talking about things they’ve done to their cars just to save a few lbs of weight. Both have multiple cars they track, and none of them have a sun roof - glass or metal.

As a side - on cars like the taycan, with the large panoramic glass sunroofs (they don’t open, so no motor), the added weight is closer to 100 lbs.

Last edited by CodyBigdog; 02-04-2023 at 10:11 AM.
Old 02-04-2023, 10:10 AM
  #17  
CanAutM3
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Originally Posted by detansinn
GT3s and other limited models.

Fun fact: the Cabriolet and Targa also use magnesium in their roof structures to reduce weight up high.
I don’t believe the base GT3 gets the Mg roof, only the RS models do. If I am not mistaken, the Mg roof can be recognized by the “double bubble” indentation.
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Old 02-04-2023, 10:20 AM
  #18  
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Originally Posted by CanAutM3
Do you have evidence of this? Because I’ve also read it’s more in the 45~50lb range.
There was a Porsche tech write up on it. I will have to locate it again. I dug it up back when there was a thread asserting that it was like 150lbs — an absurd number considering that’s the delta with a Cabrio.
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Old 02-04-2023, 11:17 AM
  #19  
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Originally Posted by detansinn
There was a Porsche tech write up on it. I will have to locate it again. I dug it up back when there was a thread asserting that it was like 150lbs — an absurd number considering that’s the delta with a Cabrio.
I agree, 150lb is ridiculous. But 25lb seems on the extreme low side of things. 25kg maybe? It would be interesting if you could find that article.
Old 02-04-2023, 11:18 AM
  #20  
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Originally Posted by dreamcar911
it has a steel sunroof, not glass. What's your opinion of a steel sunroof.vs glass or no sunroof?
First preference is no sunroof, then metal sunroof, and lastly glass.

I don't like the way the glass looks, especially on a non-black car.

If I had to get a sunroof on an AG car, I'd pick the metal one.
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Old 02-04-2023, 12:31 PM
  #21  
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Originally Posted by CanAutM3
I agree, 150lb is ridiculous. But 25lb seems on the extreme low side of things. 25kg maybe? It would be interesting if you could find that article.
25kg seems more realistic.

I chose no sunroof, as I never did use in my previous cars.
Old 02-04-2023, 12:34 PM
  #22  
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I didn’t order the sunroof option because I never use it. Plus it saves weight and one less thing that can go wrong.
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Old 02-04-2023, 12:37 PM
  #23  
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The glass sunroof makes the interior much lighter and is the only good way to observe the Race-Tex roof lining (if you have it specced).

Just another way of looking at it.
Old 02-04-2023, 02:17 PM
  #24  
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My glass sunroof has developed a squeaking sound that the dealership is struggling to fix. Not sure if that’s a metal sunroof issue too.
Old 02-04-2023, 02:39 PM
  #25  
CodyBigdog
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Originally Posted by TuvaD
My glass sunroof has developed a squeaking sound that the dealership is struggling to fix. Not sure if that’s a metal sunroof issue too.

Not for me (aluminum sunroof).

In open or closed position?
Old 02-04-2023, 03:49 PM
  #26  
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Another one of those personal choices, good that Porsche give us that. Me, I like the steel one because I like it open in the evenings or early mornings, and don’t like the look of the dark glass against white. BTW, it is steel and is about the only part of the outer skin which a magnet will stick to.

One good thing about the sunroofs in 992’s, both glass and painted, is that they don’t encroach on headroom. I’m 6’3” and can comfortably sit in mine with a helmet on which was an issue in some earlier series cars.

Last edited by aggie57; 02-04-2023 at 03:55 PM.
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Old 02-04-2023, 04:05 PM
  #27  
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Originally Posted by drchip
I live in AZ and have a steel sunroof. Personally I like the monotone color it gives the roofline. Also it keeps the car cooler here on blazing hot days.
100%.

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Old 02-04-2023, 04:09 PM
  #28  
ipse dixit
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It shouldn't stop you from getting the car if everything else checks out for you.
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Old 02-05-2023, 09:18 AM
  #29  
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Originally Posted by CodyBigdog
Not for me (aluminum sunroof).

In open or closed position?
It squeaks when closed.
Old 02-05-2023, 10:06 AM
  #30  
CodyBigdog
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Originally Posted by TuvaD
It squeaks when closed.
when it squeaks, say, while going over a rough road…if you take your hand and gently put pressure on the edge of the sunroof, does it stop? If it does, might Suggest the seal around the edge of the sunroof?


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