Is it possible that the tires and wheels were installed last, after the interior was finished and broadcast sheets all tucked away? Maybe the trunk lid tire info was written by one of last people to have access to the broadcast sheets, because the tire guys would not have a sheet to reference. I wonder if that’s why some cars built (in other plants?) have a broadcast sheet on the back of the glovebox and no trunk writing, because that sheet was used until the car was completely finished?