[figment]

Most of the "Original Cars" that I have seen at the National meets that were in fine point judging were mostly as follows.

Mostly original paint and sometimed primer showing through.
Vehicle has not been restored or disassembled.
Some minor repairs and maintenance , but mostly original bolts and nuts
Most of the interior is original.

The car or trucks were usually clean or were cleaned underneath.
The interior was cleaned and vacuumed.

This is only what I observed , others will have other information.