Carbon fiber roof or moonroof?

Needsdecaf · 12-22-2013, 08:49 PM

Quote:

Originally Posted by Sedan_Clan

True! But it's worth it for the looks. I'm probably one of the rare few who truly dislike the moonroof option.

I used to use mine a lot when I was in the North East. Then I moved to the Mid-Atlantic and started using it less. Now that I am in TX / third circle of hell, I never use it and almost always leave the shade closed. There's just too much light coming off the pavement.

The increase in headroom is not inconsequential given my 6'2" height.

Add those two together and the CFRP roof makes sense.

Reid · 12-22-2013, 10:07 PM

Quote:

Originally Posted by solstice

So, I'm undecided about the CFRP roof. I use my sunroof every day in summer and it's something I really appreciate. The very cool look of the CFRP roof is a strong argument for it but not enough for me to give up the sunroof.

As you stated, you like using a sunroof and prefer its function over the look of the carbon roof. So... What's the point of this thread?

Quote:

Originally Posted by solstice

Is there anyone here who has significant track time with an M3 with the CFRP roof and one without that can comment on how significant the less weight on top from the CFRP roof really make?

The most noticeable difference is the added headroom without a sunroof. If you're not tracking your car, why even worry about the difference that it makes on the track?

solstice · 12-22-2013, 10:52 PM

Quote:

Originally Posted by Reid

As you stated, you like using a sunroof and prefer its function over the look of the carbon roof. So... What's the point of this thread?

The most noticeable difference is the added headroom without a sunroof. If you're not tracking your car, why even worry about the difference that it makes on the track?

The point is that I wanted know from someone who really pushed the car with and without the CFRP roof how significant the difference is or isn't in terms of handling. If it's negliable I'll likely skip the CFRP roof but I'm pretty sure I will not have the chance to drive a car with and without it back to back in a way where I will notice the difference prior to ordering it. Handling is important to me wether I'm on the track or not but the track is the easiest place to evaluate the difference, a difference that is always there.

swamp2 · 12-22-2013, 11:08 PM

Quote:

Originally Posted by solstice

The point is that I wanted know from someone who really pushed the car with and without the CFRP roof how significant the difference is or isn't in terms of handling. If it's negliable I'll likely skip the CFRP roof but I'm pretty sure I will not have the chance to drive a car with and without it back to back in a way where I will notice the difference prior to ordering it. Handling is important to me wether I'm on the track or not but the track is the easiest place to evaluate the difference, a difference that is always there.

As others have noted you will not be able to feel it nor measure it. That's based on simple ratios and percents and common sense. It is just part of a total package of weight reduction items, each contribute little but overall the effect is large.

solstice · 12-22-2013, 11:14 PM

Quote:

Originally Posted by swamp2

As others have noted you will not be able to feel it nor measure it. That's based on simple ratios and percents and common sense. It is just part of a total package of weight reduction items, each contribute little but overall the effect is large.

Thank you, again that's what I suspected but we have all driven cars with roof racks and top boxes. 40 lbs on the roof can definately be felt in terms of reduced sharpness in agility and added body roll. The roof is better integrated and has less leverage but it's still the highest point of the car so I wasn't sure. It's good to hear that the consensus from everyone is that it can't be felt. Thanks again.

ZGM3 · 12-23-2013, 12:12 AM

To those that track their E90:
If you don't have a sunroof and regulations insist that you drive with both front windows down, is there a great deal of wind buffeting (as some coupes do: porsche, and TT's)?
If you do have a sunroof, are you alowed to have it vent and keep the wind buffeting to a minimum?

Chill72 · 12-23-2013, 02:37 AM

Quote:

Originally Posted by solstice

Not really since I'm not confused about my gender.

Pics or lies.

535DMSport · 12-23-2013, 03:00 AM

Quote:

Originally Posted by Chill72

CF roof = for MEN

sunroofs = for HS girls

I hope I put your mind at ease.

Couldn't resist

If you not order the sunroof they might not hear you play this.

Powaup · 12-23-2013, 07:44 AM

CF roof makes the car looks so much more unique and aggressive. It's a must to me.

M4Trojan · 12-23-2013, 10:46 AM

I never understood why anyone would delete the CFRP roof. It's one of the key features (visually) that makes the M what it is and separates it from other cars.

F82_SID · 12-23-2013, 11:02 AM

This will be my 3rd BMW coupe and probably the first that I order without a sunroof. This has been a hard decision for me as well since I love my sunroof. I love blasting through the canyons with the windows down, sunroof open, and music up! My belief so far has been that the cabin looks to dark with out the light from the sunroof. I dont really care about the weight savings since I drive an M more out of enjoyment than speed. That being said, I do think that the CF roof is a must with the color that I am planning on ordering (AY).

I am probably going to really miss the sunroof though.

stressdoc · 12-23-2013, 11:36 AM

I like being able to look for bears in the sky. I love sun and fresh air.
But I would have to go for the CF, time to reduce skin cancer risk...

bmwluvr24 · 12-23-2013, 12:14 PM

CFRP for me! This is one of the options that makes me want this car.

CanAutM3 · 12-23-2013, 12:57 PM

Quote:

Originally Posted by m3nari

To those that track their E90:
If you don't have a sunroof and regulations insist that you drive with both front windows down, is there a great deal of wind buffeting (as some coupes do: porsche, and TT's)?
If you do have a sunroof, are you alowed to have it vent and keep the wind buffeting to a minimum?

Not sure you would be allowed on the track with the roof open

(our club does not allow it).

On a side note, my experience is that E90s have much more wind buffeting than E92s because of the shorter doors/windows. With the E92, the buffeting is mostly felt in the back seat and it is much quieter in the front.

jbockrd · 12-23-2013, 01:02 PM

Go look at that Silverstone thread and it will make you beg for a CF roof

Bluehorseshoe · 01-14-2014, 05:31 PM

Hi, how much more does conventional roof with sunroof weigh, and does it make a noticeable difference in handling? I don't care about looks, I like the functionality of a sunroof but don't want to sacrifice to much to have it. Thoughts?

Sedan_Clan · 01-14-2014, 05:33 PM

Quote:

Originally Posted by Bluehorseshoe

Hi, how much more does conventional roof with sunroof weigh, and does it make a noticeable difference in handling? I don't care about looks, I like the functionality of a sunroof but don't want to sacrifice to much to have it. Thoughts?

For daily driving, it won't affect anything. If you're tracking, every little bit of weight savings helps. The difference in weight between the CF roof and the standard roof with a moon roof is probably +/- 50 lbs, which is significant considering where that weight is located.

Reid · 01-14-2014, 07:44 PM

Quote:

Originally Posted by Sedan_Clan

For daily driving, it won't affect anything. If you're tracking, every little bit of weight savings helps. The difference in weight between the CF roof and the standard roof with a moon roof is probably +/- 50 lbs, which is significant considering where that weight is located.

If you're tracking the car, the biggest difference will be the decrease in headroom with a sunroof.

On the street there is no tangible difference in performance between the carbon roof and the sunroof.

Needsdecaf · 01-14-2014, 08:11 PM

Welcome to last month.

http://f80.bimmerpost.com/forums/sho...highlight=roof

CanAutM3 · 01-14-2014, 08:20 PM

Quote:

Originally Posted by Needsdecaf

Welcome to last month.

http://f80.bimmerpost.com/forums/sho...highlight=roof

More like "Welcome to 7 years ago"

Randy M · 01-14-2014, 08:23 PM

For me headroom is a problem in many cars, especially if they have sunroofs. I wouldn't order a M4 with a sunroof so the CF roof is just a plus for me.

gee-m-w · 02-21-2014, 05:01 PM

Are you going to order the moonroof or the CF roof? The CF roof would look strange on certain colors. It's too bad they don't also offer it as a painted option.

View Poll Results: Which option will you order?
Moonroof	428	20.88%
Carbon fiber roof	1,622	79.12%
Voters: 2050. You may not vote on this poll

12-23-2013, 12:12 AM	#28
ZGM3 Private First Class 47 Rep 164 Posts Drives: bmw Join Date: Jul 2011 Location: california iTrader: (0)	To those that track their E90: If you don't have a sunroof and regulations insist that you drive with both front windows down, is there a great deal of wind buffeting (as some coupes do: porsche, and TT's)? If you do have a sunroof, are you alowed to have it vent and keep the wind buffeting to a minimum?
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12-23-2013, 07:44 AM	#31
Powaup Brigadier General 1253 Rep 3,688 Posts Drives: 2021 Supra 3.0 (Past: 2015 M23 Join Date: Aug 2012 Location: San Francisco, CA iTrader: (0) Garage List 2015 BMW M4 [10.00]	CF roof makes the car looks so much more unique and aggressive. It's a must to me. __________________ Check out my YouTube Channel Powaup Instagram: @ Powaup
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12-23-2013, 10:46 AM	#32
M4Trojan Private First Class 3 Rep 131 Posts Drives: '11 E92 ZCP Join Date: Nov 2013 Location: United States iTrader: (0)	I never understood why anyone would delete the CFRP roof. It's one of the key features (visually) that makes the M what it is and separates it from other cars.
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12-23-2013, 11:02 AM	#33
F82_SID Brigadier General 208 Rep 3,153 Posts Drives: 2020 M2C 6mt HK Silver Join Date: Jan 2008 Location: Denver, CO. USA iTrader: (2)	This will be my 3rd BMW coupe and probably the first that I order without a sunroof. This has been a hard decision for me as well since I love my sunroof. I love blasting through the canyons with the windows down, sunroof open, and music up! My belief so far has been that the cabin looks to dark with out the light from the sunroof. I dont really care about the weight savings since I drive an M more out of enjoyment than speed. That being said, I do think that the CF roof is a must with the color that I am planning on ordering (AY). I am probably going to really miss the sunroof though. __________________ 2011/E92/M3/MR/BB/ZCV/ZP2/EDC/2MT
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12-23-2013, 11:36 AM	#34
stressdoc Moderator 618 Rep 10,855 Posts Drives: BMW i8; Toy 4runner TRD pro Join Date: Jun 2005 Location: Waco TX iTrader: (0)	I like being able to look for bears in the sky. I love sun and fresh air. But I would have to go for the CF, time to reduce skin cancer risk... __________________ My recent ED photos: http://f80.bimmerpost.com/forums/sho....php?t=1026808 my not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829 Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
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12-23-2013, 12:14 PM	#35
bmwluvr24 Driving Mika all over California..... 57 Rep 619 Posts Drives: 2008 E60 M5 Join Date: Dec 2012 Location: San Diego, CA iTrader: (0)	CFRP for me! This is one of the options that makes me want this car. __________________ 2008 E60 M5 Sepang Bronze Metallic, gloss black grills and gills, LED side markers, 12mm spacers all around, stud conversion kit, custom exhaust with Magnaflow mufflers and x-pipe.
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12-23-2013, 01:02 PM	#37
jbockrd Lieutenant 23 Rep 550 Posts Drives: e92 Alpine White/Carbon M3 Join Date: Jul 2006 Location: Yardley, PA iTrader: (0)	Go look at that Silverstone thread and it will make you beg for a CF roof __________________ On the list for an M4!!
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01-14-2014, 05:31 PM	#38
Bluehorseshoe Lieutenant 305 Rep 497 Posts Drives: M5 CS Join Date: Jan 2014 Location: Fairfield County, CT iTrader: (0)	Carbon Fiber Roof Hi, how much more does conventional roof with sunroof weigh, and does it make a noticeable difference in handling? I don't care about looks, I like the functionality of a sunroof but don't want to sacrifice to much to have it. Thoughts?
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01-14-2014, 08:11 PM	#41
Needsdecaf Major General 6562 Rep 6,679 Posts Drives: 2024 G80 Comp xDrive Join Date: Feb 2011 Location: The Woodlands, TX iTrader: (0)	Welcome to last month. http://f80.bimmerpost.com/forums/sho...highlight=roof
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01-14-2014, 08:23 PM	#43
Randy M First Lieutenant 29 Rep 358 Posts Drives: 2013 B302 LS Join Date: Jul 2013 Location: 'Merika iTrader: (0)	For me headroom is a problem in many cars, especially if they have sunroofs. I wouldn't order a M4 with a sunroof so the CF roof is just a plus for me. __________________ '11 Porsche GT3 (Sold)
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02-21-2014, 05:01 PM	#44
gee-m-w First Lieutenant 74 Rep 348 Posts Drives: S4 Join Date: Sep 2013 Location: San Francisco iTrader: (0)	Carbon fiber roof or moonroof? Are you going to order the moonroof or the CF roof? The CF roof would look strange on certain colors. It's too bad they don't also offer it as a painted option. __________________ WTB: 2016 M3 sedan, Black Sapphire, Extended Sakhir Lether, Ceramic Brakes, 19" black wheels, Lighting Package, HK sound, USB/Bluetooth Sold: 2006 e90 325i 6MT, ground control coilovers, Remus exhaust
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