[Vivek.]

Originally Posted by leon360x

Thanks for sharing, but still don't understand why BMW design the rear diffuser like that, not covering the bottom of the car and exhaust, does it really functional?

Some of the CF bits really feel like 'lets add unnecessary parts and then make it CFRP because lightweight'

[David70]

Originally Posted by leon360x

Thanks for sharing, but still don't understand why BMW design the rear diffuser like that, not covering the bottom of the car and exhaust, does it really functional?

I think it was designed by Marketing, not Engineering.

[mature banana]

Thanks for sharing, BMWGirlFL.

A downside is repair of CFRP structure. It’s brittle and can’t be worked like metals. Plus, CFRP exhibits damage modes such as delamination (ply separation) that can severely degrade structural integrity and is not always visible. Don’t mean to be a downer. CFRP is obviously super cool, there’s just never a free lunch..!