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      02-19-2014, 05:55 PM   #133
bcscout
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If I was driving a race car, I'd worry about weight. It's my DD and I love to open the roof on a beautiful country road and cruise the back roads of GE, NL and BE. To each is own and respect your decision not matter what you choose.
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      02-19-2014, 06:28 PM   #134
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I would choose carbon fiber mainly because I love the way it looks. Wish they would have that option for sedans.
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      02-19-2014, 06:33 PM   #135
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Originally Posted by serg87 View Post
I would choose carbon fiber mainly because I love the way it looks. Wish they would have that option for sedans.
Well, they are offering it for the new F80 M3 sedans... I guess they learned from the E90s.
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      02-19-2014, 09:01 PM   #136
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Originally Posted by GregW / Oregon View Post
I'm old as dirt and went CF because its just too cool, and saving wight is a big bonus.
Who is Wight? Why does he need saving?

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Will be 65 in June.
Wow! Time to trade the M3 and get a Corvette!

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Moonroof on a M3 coupe is retarded
Close thread
Carbon Fibre roof on a heavy luxury GT car is retarded. Reopen thread.
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      02-19-2014, 09:03 PM   #137
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Carbon Fibre roof on a heavy luxury GT car is retarded. Reopen thread.


Who is Fibre? Is that Fabio's cousin?
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      02-19-2014, 09:12 PM   #138
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Who is Fibre? Is that Fabio's cousin?
That was actually the correct spelling, from the French word 'fibre" which in turn came from the Latin word "fibra", before some illiterate American hicks who like sleeping with their sister ruined the spelling
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      02-19-2014, 09:17 PM   #139
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the carbon fiber looks sick on my red M3.
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      02-19-2014, 09:32 PM   #140
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Quote:
Originally Posted by serg87 View Post
I would choose carbon fiber mainly because I love the way it looks. Wish they would have that option for sedans.
You could buy a carbon roof from IND:

http://www.m3post.com/forums/showthread.php?t=528825
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      02-19-2014, 09:48 PM   #141
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Originally Posted by mdoughty View Post
Performance difference will be minute. Carbon roof looks great on certain paints, especially Melbourne and alpine, but I love my moon roof. It's nice even in winter to crack it open to prevent the car from getting stuffy. While i still feel a twang of regret when I see cf, it's quickly overcome by the utility and luxury of the moon roof. I've chosen to shed weight in the exhaust and rims to even up the weight score with the cf guys.
So you have effectively raised the C/G of the car?
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      02-19-2014, 10:54 PM   #142
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So you have effectively raised the C/G of the car?
I'm pretty sure all of us on here are Sebastian Vettels and can notice a couple of millimetres shift in the centre of gravity's location.

So what exactly is the performance delta between the two cars anyway? Because what theoretically works on paper doesn't always translate to the real world. So has there ever been any documented evidence of the carbon fibre roof actually leading to measurable performance gains? Or is this more like a ricer buying carbon fibre parts off eBay for his Civic and convincing himself that he has a racing car?
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      02-19-2014, 11:29 PM   #143
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the carbon fiber looks sick on my red M3.
CF looks sick period.
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      02-19-2014, 11:59 PM   #144
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I hope everyone who is sooo performance oriented that they are making the argument that a CF roof makes a difference at the track also have DCT and the competition package. Because, the minor weight difference of the CF will not make as big a difference as these other options will. I'm just sayin...

Last edited by M3-S65; 02-20-2014 at 02:21 PM.
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      02-20-2014, 12:23 AM   #145
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CF looks sick period.
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      02-20-2014, 02:21 AM   #146
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There are what, maybe 3 people on this board who could throw down a faster lap in a CF vs. sunroof coupe - all other things being equal. You'd cut more time off a lap with a good set of R comp's than a roof ever could. It's an aesthetic choice much more than performance.

Before I bought mine, I did an epic 3 day drive through CA in a rented E92 with CF roof. Loved the car but several times every day, I wanted to pop open the roof to view the beautiful scenery. That was the deciding factor for me even though I love the look of the CF. Oh yeah, and I'm old
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      02-20-2014, 06:21 AM   #147
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Kudos to bmw because a 15lb lighter roof makes the m3 an inherently better platform for club and pro racing. And 15lbs at roof height might not be anything for your avg joe hpde-er but it is in racing. The weight of a sunroof is pretty bad for performance on track and that difference I bet a fast hpde guy could feel.
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      02-20-2014, 08:06 AM   #148
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Kudos to bmw because a 15lb lighter roof makes the m3 an inherently better platform for club and pro racing. And 15lbs at roof height might not be anything for your avg joe hpde-er but it is in racing. The weight of a sunroof is pretty bad for performance on track and that difference I bet a fast hpde guy could feel.
Perhaps, but if you really want a dedicated race car then an M3 is a subpar platform for that. It's quite expensive, and for all that cost it's still underpowered, overweight, and requires a long laundry list of mods before being ready for racing. It's not a particularly fast car for the money either. For such a price tag there are many platforms that are more suited for building a race car, for example a slightly used C6 Z06, Cayman R, GTR, or even a Boss 302.
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      02-20-2014, 02:20 PM   #149
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Perhaps, but if you really want a dedicated race car then an M3 is a subpar platform for that. It's quite expensive, and for all that cost it's still underpowered, overweight, and requires a long laundry list of mods before being ready for racing. It's not a particularly fast car for the money either. For such a price tag there are many platforms that are more suited for building a race car, for example a slightly used C6 Z06, Cayman R, GTR, or even a Boss 302.
Agreed...
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      02-20-2014, 04:41 PM   #150
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You could buy a carbon roof from IND:

http://www.m3post.com/forums/showthread.php?t=528825
Looks legit, but way too much modification. I wouldn't want someone to mess with my car to that degree.
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      02-20-2014, 05:02 PM   #151
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Quote:
Originally Posted by Petros View Post
Perhaps, but if you really want a dedicated race car then an M3 is a subpar platform for that. It's quite expensive, and for all that cost it's still underpowered, overweight, and requires a long laundry list of mods before being ready for racing. It's not a particularly fast car for the money either. For such a price tag there are many platforms that are more suited for building a race car, for example a slightly used C6 Z06, Cayman R, GTR, or even a Boss 302.
I'd agree for a track day car but things are a lot more complex when it comes to club racing which my previous post was directed at. BMWCCA, SCCA, and NASA all have classes for M3s which don't allow some of the cars you mentioned. And GTRs are expensive to track (fuel, tires, brakes,..)
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