We were discussing about too-background vehicles.
Those with a role should not be deleted, or at least moved to movie comments in case they are really unidentifiable.
Same for those who are clearly noticeable, like https://www.imcdb.org/vehicle_166681.html in your list.
They should be kept somewhere, so in comments if not on individual pages.
Or maybe there should be a "Unidentifiable" category in addition to "Unknown" for these?