10-13-2020, 07:42 PM | #46 | |
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For example, Xpel entered China in 2015 and ALL of their offering is new formula that is thicker (8mil) and UV resistant (99.9% rated). In China market, till this point every single customer does full wrap, literally no one does partial wrap not even thinking about it. Hence no concern of color issue. PPF does help protect car in so many ways. All of my cars are wrapped, and so will all my future rides.
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10-13-2020, 08:16 PM | #48 |
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wait, the mperf cf roof is 2x2??
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10-13-2020, 09:33 PM | #49 | |||
Luxury at the redline :)
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The fact that their is a flaw in the roof's weave (whatever the reason) is big fail IMHO. Especially for a replacement part that probably retails for like over $8,000 and about 22 hours of labor to swap. One thing I would tell you is If I owned a CS and there was a imperfection as this, I would just leave it as is. No way I'm going to have some dealer tear apart my new vehicle, just for this but it's still upsetting nonetheless. I guess you can say ambivalent about the subject but I wouldn't lose too much sleep over it.. |
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10-13-2020, 09:44 PM | #50 |
Luxury at the redline :)
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10-13-2020, 11:32 PM | #52 |
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BMW CF roofs have always been (up until the M2CS) plain weave 1x1, all the M "performance" bits have always been 2x2 twill weave, something that bothered me so much ever since the E9x gens when owners fitted non matching CF mirror caps, even tho it was a BMW option.
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10-13-2020, 11:57 PM | #53 |
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I didn't know F80 roofs were having issues too.
This is the problem I have with BMW wasting money on a huge gimmick like a CF roof that will cost a ton of money to replace. I don't care that it's a couple lbs from the top of the car, it's still a negligible amount of sprung weight, probably does nothing to the overall center of gravity. Please BMW, just put the money for these trinkets into stuff like the actual suspension or drivetrain next time. |
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10-14-2020, 12:00 AM | #54 |
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So is this the only BMW CF roof that doesn't sit on cross beams? The only one that's strong enough to take the entire load? And they'll never make it again?
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10-14-2020, 12:05 AM | #55 | |
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10-14-2020, 12:29 AM | #56 |
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The more this becomes an issue the more it becomes part of the story of this car. Every good car has some foibles that people point to over time and eventually look out for.
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10-14-2020, 12:47 AM | #57 | ||||
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10-14-2020, 01:36 AM | #58 | |
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See for example here for an explanation of the different weave patterns ("Carbon Fiber - All Patterns Explained"). The difference between for example an F82 M4 CFRP roof and an F87 M2 CS CFRP roof is the size of the weave pattern. To stand corrected, I updated the first post of this thread accordingly.
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10-14-2020, 01:36 AM | #59 | |
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"For the M2 CS, the Germans developed their own unique roof, which is a structural part of the bodywork! This is different from the way aftermarket solutions are available in the market, or even the M Performance solution" Lots of info on this. |
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10-14-2020, 02:02 AM | #60 | |
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"The new roof, with its sandwich design, makes the body more rigid and appears to have been cut from the same mould as the rest of the car; no trim strips are needed, meaning no visible join[t]s either. This has the additional effect of enhancing acoustics, both inside and outside the car. And dispensing with the customary roof bows and insulation also saves weight. Together with the lighter bonnet, this serves to lower the vehicle’s centre of gravity, resulting in even better driving dynamics."Furthermore, the M2 CS roof features no roof rack anchorage points (roof drip rail with flaps).
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10-14-2020, 03:42 AM | #61 | |
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The roof is an integral part of the M2CS and is not like "every other" carbon roof.. as we have mentioned to you throughout the thread a few times...
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10-14-2020, 03:58 AM | #62 |
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Carbon fibre roofs have to be covered in ppf and then ceramic coated for optimal protection. Otherwise they will deteriorate when parked outside in harsh climates.
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10-14-2020, 05:29 AM | #63 | ||||||||
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M2CS roof has plain weave on top and bottom, using two different types of weaving structures. Top is a UI tape (unidirectional fibers measured in the thousands) laid in a plain twill weave, bottom appears to be a 3K UI (much finer, denser form, being substituted for the cross reinforcement braces) M2CS roof is as much part of the chassis as a prosthetic limb is to our bodies. |
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10-14-2020, 05:48 AM | #64 | |
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Only the e92ben chap has claimed this roof is easy to remove and re-fit and when we told him it's definitely not that easy or like the other carbon roofs on the previous cars, he's then claimed its not part of the chassis ... (no one has said it was part of the chassis in the first place )
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10-14-2020, 05:51 AM | #65 |
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If you live in Australia and love your car you don't park outside of cover aside from brief periods. So It's a moot point.
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10-14-2020, 05:56 AM | #66 | ||||
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No one's talking about the chassis?
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