Hi
I noticed that the bonnet of my Z4 is not steel - neither the skin nor the frame. I also noticed that that skin is supported on the frame by a multitude of little "studs" projecting from the frame.
What I cannot figure out is what they are made of. The frame looks to me to be metal, but it is non-magnetic, so I assume it is some alloy. Is that right? The skin is more of a mystery. I cannot figure out whether it is some thin metal alloy or some sort of composite, plastic-based material.
Any ideas?
A
I noticed that the bonnet of my Z4 is not steel - neither the skin nor the frame. I also noticed that that skin is supported on the frame by a multitude of little "studs" projecting from the frame.
What I cannot figure out is what they are made of. The frame looks to me to be metal, but it is non-magnetic, so I assume it is some alloy. Is that right? The skin is more of a mystery. I cannot figure out whether it is some thin metal alloy or some sort of composite, plastic-based material.
Any ideas?
A

