cat c can be anything,scratched paint,a broken bumper etc.depends on the cars value as if it costs more to repair than what the assesor thinks its worth it will get a cat d or c,and it could be minimal damage.
when i got my cossie it was stolen recovered and i thought it was cat d,but it turned out it was cat c.there was absolutely no damage to anything,locks etc but the interior was completely missing.i didnt need a vic check for that.