[Konstantinos]

Sorry, my mistake "..those which were not set to 1".

I actually wrote a function yesterday that is supposed to respawn the vehicles which are not occupied (trailers that are attached to occupied vehicles won't respawn either). Just make sure that you are up-to-date to YSI for the "Vehicle" iterator:

pawn Code:

RespawnVehicles()
{
    new bool: occupied_vehicle[MAX_VEHICLES char], vehicleid;

    foreach(new i : Player)
    {
        if ((vehicleid = GetPlayerVehicleID(i)))
        {
            occupied_vehicle{vehicleid} = true;
            occupied_vehicle{GetVehicleTrailer(vehicleid)} = true;
        }
    }
    foreach(new v : Vehicle)
    {
        if (!occupied_vehicle{v}) SetVehicleToRespawn(v);
    }
}