Hello LOOKout2014,
Welcome to Microsoft Support Community Forum!
As far as I know, the "Date modified" of a folder is only changed when the folder is modified. Any change to the subfolder (VW) of the parent folder (CAR) does not count as a change of the parent folder.
If it were Windows 10 OS, I would have suggested that you Send feedback to Microsoft with the Feedback Hub app.
Thanks,