> Also, to emphasize, when a cheap aluminum, steel or fiberglass part breaks/is wrecked, it's cheaper to replace than a carbon infused panel. Try to re-bend the frame of a steel car (rather easy) and re-bend the frame of a car with a monocoque body made of carbon fiber (You can't).
Can you repair the more exotic steels that are now used on cars? I was in an accident a year ago, and all of the affected ultra-high strength steel members of the car had to be directly replaced: it was explained to me that they cannot be straightened or welded.
As to the CFRP used in the BMWs, it is actually "repair friendly". The insurance costs of a BMW i3 are no more than other comparable luxury cars: in an accident, they cut out the affected portions of the CFRP and epoxy replacement elements in place. The material costs might be slightly higher, but the labor costs are lower.