What does "cold rolled 30 times" mean? Do you know? See, I do, because I have a mechanical engineering degree and a background machining and metal work. I don't think you do, because if you googled it you'd know that it doesn't do anything to affect the finish of steel whatsoever. Every stainless panel you've ever seen on every dishwasher and every refrigerator has been cold rolled. The way you make cold-rolled steel not show every blemish is by embossing so that you don't show imperfections, either small- or large-scale. This is why you see quilted stainless on food trucks.
See, I know the answers to these questions and you could too, with a bare modicum of research. The automotive press has been making much of the fact that the thing's a unibody; okay, so was the Subaru Brat. So's the Honda Ridgeline. So was the VW Beetle. The way you used to get the strength out of a monocoque structure was by welding it; nowadays you might bond it instead. Either way, I don't have to "imagine" what replacing them would be like; I've done unibody work and it's destructive and time consuming.
Putting aside how condescending that reply was, I will also take it that you haven't m̶u̶c̶h̶
any research on the cybertruck besides seeing a couple pictures. I never stated that flat panels are stronger than round, in fact a dome or egg shape would probably be the strongest I believe. What sets the cybertruck apart from other trucks is that it is not body-on-frame design. The ugly triangle shape is what makes it so strong. The flat panels are for manufacturing efficiency. The individual panel strength comes from them being cold rolled, the same steel they use on the SpaceX Starship. They literally cannot stamp the panels because they will break the stamping press.
I also take into account that tesla makes some of, if not the, safest cars on the road and knows what they are doing with strength of materials and design. Maybe not as much with you though with all your jewelry making experience.
I really had to pare the snarkiness of this post back and will just chalk up your reply to not having your coffee yet.