I have been trying to keep up with all this as a sort of recent player of DayZ. It is great, the changes from .58 to .59 to .60 are all getting better but I realize things get modified it can affect other things.
As far as the persistence of Vehicle or stability or whatever, It is different from .59 to .60. I assembled a bunch of vehicles with help and we were able to place them around the map etc. they were there when you logged even after a couple of days. To include server resets. The loot was not reset, just the server. This was in .59, They never moved.
I have found this to not be true in .60. I set up a vehicle drive to Rogovo. End my session for the day and log the next day or latter that same day and poof gone. Annoying to say the least.
The only things I have heard from the update video was regarding the Bumblebee and it not being ready yet due to stability issues with vehicles. So where does this leave us? I have seen no comments on the Late Sep video update about this issue and nothing on the 11 OCT 2016 update either...