What makes vehicles disappear/respawn?

[StormCloudSeven 0]

Does server resetting cause vehicles to respawn? Restarting server timer causes respawns too? Yesterday I was playing with a friend over skype and at the end of our journey we found a bicycle, and have hid it inside one of those short bushy trees, saved the vehicle, and logged out. Today I rejoin that same server, the bicycle was gone. But because our hiding place for it was very close to where we found it, i walked right over to its original spawning point and its there again. Now I doubt some guy found our bike and just rode it back over there and left it. If server resets causes vehicle to respawn, wouldn't that make repaired vehicles kind of pointless? You could spend hours repairing a car, drive it somewhere, and the next day it wouldn't be where you left it.

I mean I only have 1 other partner in DayZ that I play with, so for us to actually fix up a vehicle takes multiple runs back and forth between factories and the car, if spending all the effort to fix one up only means that it will be gone the next day because the server we played on reset while we were logged off, then isn't it all for nothing? I know many of the servers reset a lot too. We've actually tried fixing a vehicle ones, we found the blue van at a gas station and managed to fix 3 of its glass panels, 1 wheel, the fuel tank, and the hull. We then stopped for the day because we had already visited all the nearby factories but was still short on 3 wheels, we figured we'd log off for the day and come back tomorrow so that those factories will respawn some new items. When we logged off that night it was already about 1AM irl. We log back on the next day at around 2pm, we spawned in the factory, picked up whatever car parts we found there, and went our way back to the gas station where the car was at, only to find it no longer being there. It could be possible that someone else came by and completed the remaining 3 wheels and engine, but it was a US server which didn't have a lot of people playing in it (usually 5 or less), I doubt a lot of people played in it during mid night, so I assume the server actually reset or something over night and the van we half fixed just respawned else where.

[Stings2pee 106]

It seems like all the servers are fucked. It's not even worth getting a vehicle anymore because they hardly ever save. Something must be done about this but not before dealing with the graphical artifacts and hackers, of course.

[RIGHTLY 87]

Yeah me and my friend got three cars because we new where the spawns were lol. We went looking for a helicoptor after that to see if we could fly it before the server restarted. Couldnt find one but it was fun to drive a car around.

[enforcer1975 1111]

Must have something to do with items having numbers with more that 6 diggits. I read they solved the problem a few patches earlier...seems they didn't or patched it back in. At least it gives you something to do after a server restart.