A friend told me that this option is available for the current M5 similar to the roof scheduled for the new M6. Is this accurate or is it a non US option?

From BMW's Website regarding the roof on the new M6:
"The lightweight carbon-fiber roof shifts the physical center of gravity of the car further down than the weight of a normal steel roof"

Thanks.

I havent seen anything officially posted.

Read this somewhere as well.

they better give us this, if true, because that's my next ride :D

then again, I like a moonroof...

they better give us this, if true, because that's my next ride :D

then again, I like a moonroof...


Moonroof, CF, What else you want there Art? A rocket launcher? lol **** the moonroof. The CF roof acts the same as lowering the roof by 3 inches... You can imagine the benefit.

Moonroof, CF, What else you want there Art? A rocket launcher? lol **** the moonroof. The CF roof acts the same as lowering the roof by 3 inches... You can imagine the benefit.

yea, but I want it all! lowering the roof 3 inches, that's a healthy shift in the center of gravity...wonder how much weight?

no, that's no going to happen.

Probably not.

Oh, wrong section :D

It might.. but prob just in a special edition... like CSL or maybe ZCP...
And lowering the roof 3 inches? that'll lower the CG about 1/4"... maybe 1/2" TOPS.... I mean, how much does a roof really weigh?? Even if it's 150lb with sunroof, that's only like, what, 4% (I forgot how much M3 weighs).. .so, ok, say the CG is 1/2 the height of the car, which is say, 5 feet... hmm take 2% from half of that... that's like a half an inch... basically, unless you want to hardcore race this car and are interested in doing all the weight-saving mods, you are just as well off having the sunroof, and just lowering the whole car 1/2" with $400 springs... which is probably a LOT cheaper than the CF roof option... I dunno, it's late.. (well, not so much) but I've had enough to drink... so my head isn't all clear...

Oh wait, I forgot to add the weight of the roof... which is say, 50lb.. so shave 100lb... so really, more like 1/3" lower.. not worth it...

cf roof saves 10lbs on m6...

cf roof saves 10lbs on m6...

And if it's 10 lb. , then the CG will be lower by 1/30th of an inch.. AKA lunch at McDonald's vs Slim Fast...

cf roof saves 10lbs on m6...


So it saves 70 lbs in the m3 and 10 on the M6? Why they used "heavy CF" there? Hard to believe...