unrebuildable

adjective2

1. •
   Too damaged to be rebuilt.

   • They were unrebuildable, and it was decided that they had to be torn down. — 2006
2. •
   Unable to be made roadworthy; legally usable for parts or scrap only.

   • Just as far as when a vehicle is determined unrebuildable and salvage, basically it is good for parts only. — 2006