With the last update, I am now getting exceptions on car spawn:

1482116833737 function: SpawnCars -- file: DriveCarsServer.lua line # 173
java.lang.RuntimeException: attempted index: 1.0 of non-table: null
at se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1549)
at se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:473)
at se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:163)
at se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1727)
at se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1672)
at se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:53)
at se.krka.kahlua.integration.LuaCaller.protectedCallVoid(LuaCaller.java:81)
at zombie.Lua.Event.trigger(Event.java:37)
at zombie.Lua.LuaEventManager.triggerEvent(LuaEventManager.java:83)
at zombie.iso.IsoChunk.doLoadGridsquare(IsoChunk.java:1239)
at zombie.network.ServerMap$ServerCell.RecalcAll2(ServerMap.java:302)
at zombie.network.ServerMap$ServerCell.Load2(ServerMap.java:179)
at zombie.network.ServerMap.preupdate(ServerMap.java:682)
at zombie.network.GameServer.main(GameServer.java:705)

I did a full wipe, removed all Steam files for the dedi server tool and the game, plus wiped the entire UserData\Zomboid directory to make sure it was completely clean.

It looks like some of the functions and variables defined in DriveCars.lua are not visible in the scope that DriveCarsServer.lua runs in.

First I added:
local CarList = {"yellowcamero", "whitepickup", "greenjeep"};
to SpawnCars before CarList was used.

After multiple other exceptions, I added the following functions to DriveCarsServer.lua:
StrReplace
AbsoluteValue
IsIn
getTextFor

New cars spawn now spawn. I verified that there were no more right click errors, and taking items from cars worked. I didn't verify driving, as I haven't found any non-broken cars with gas yet. :)

Also, SpawnCars will throw exceptions when running the server in 'softreset' mode
(-Dsoftreset as a parameter), even with these fixes. While reseting, it looks like 'square:transmitModdata();' isn't a valid call to make. I don't know if there's a flag to check before calling this, like some kind of 'IsServerDataResetting' or what.