Have you added the Users/Public/Public Documents/Prohibition Police Car Bundle to the  Daz Studio Formats

Right click on the Content Panel  Select Add A Base Directory

Paste the link Users/Public/Public Documents/Prohibition Police Car Bundle in the Folder Section

Select Folder

Once you do this the folder should be added and you should see the Prohibition Car Bundle in the the Content Panel.

Now select something and see if it works.

Remove the old link because it is missing something