I had the Progetto 46 in a rental slot after a recent 3 day trial. I then bought the vehicle in the recent Black Market, the purchase went through fine. I now have the tank, but it will only show up in my main garage if I'm not running my mods. If I want to use the tank, I have to go to rental in the garage and access my garage from there to use the vehicle. I uninstalled the mod pack and the tank shows up in my main garage, I thought this fixed the issue, but when I re-installed the mod pack, the tank went back to the garage within the rental slot.
Andy