My Father recently bought a PS4 Pro and downloaded GT Sport. When I logged into the PS4 and opened my garage there were cars in there that I don't have the rights to drive and I'm not able to delete them. I'm assuming that this is because he downloaded a newer release of the game from the Playstation Store, hence the DLC car pack was slightly different. I guess the only way to fix this will be to delete his copy of the game and re-download mine??