Mission Cycling and selected vehicle problems

Hey all I have a problem I hope you can help me with.

I have managed to successfully get players to spawn mounted in vehicles, and that each player can chose what vehicle they want to spawn in before the game. Here is my problem though, while the player's vehicle shows up just fine initially, upon mission end and cycle into a new mission of the exact same type, the player's vehicle does not show up, just the player character. I have checked the log and it is trying to recreate the vehicle in the new mission as it should but can't find the information for the variable I assigned to the datablock. For some reason the client information is not all being passed from one mission to the next.

Here is what I have done:

$playerVehicle is a global variable I have set up for temporary use until I finish the Vehilce selection gui to assing it different values.

In ..common\server\clientConnection.cs I have:

function GameConnection::onConnect( %client, %name, %vehicle )

and in the same function:

%client.vehicle = %vehicle;

Then in my hosting args I have the function:

function SM_StartMission()

which contains this:

%conn.setConnectArgs($pref::Player::Name, $playerVehicle);

Then in my joining args I have the function:

function joinLanGui::join(%this)

which contains this:

%conn.setConnectArgs($pref::Player::Name, $playerVehicle);

Finally I have this in my game script:

function GameConnection::createvehicle(%this, %spawnPoint)
   {
      error("inside onNewDataBlock");
      if (%this.vehicle > 0) 
      {
         // The client should not have a player currently
         // assigned. Assigning a new one could result in
         // a player ghost.
         error( "Attempting to create an angus ghost!" );
      }

      %player = new Player()
      {
         dataBlock = PlayerBody;
         client = %this;
      };

      error("created player");

      MissionCleanup.add(%player);
      error("added driver to missionCleanup");

      // player setup
      %player.setTransform(%spawnPoint);
      %player.setShapeName(%this.name);

      %this.camera.setTransform(%player.getEyeTransform());
      %this.player = %player; 
      //%this.setControlObject(%player);

      // Create the vehicle object
      %vehicle = new WheeledVehicle() 
      {
         dataBlock = %this.vehicle;
         mountable = true;
         client = %this;
      };

      error("created vehicle");

      MissionCleanup.add(%vehicle);
      error("added vehicle to missionCleanup"); 

      //attempt to mount player 
      error("Attempting to mount player to vehicle");

      %node = "mount0";
      //%this.player.onMount(%this,%player,%vehicle,%node);
      %vehicle.mountObject(%player, 0);
      //%player.Armor.onMount(%this,%player,%vehicle,%node);

      // Player setup...
      %vehicle.setTransform(%spawnPoint);
      %player.setShapeName(%this.name);

      // Update the camera to start with the player
      %this.camera.setTransform(%vehicle.getEyeTransform());

      // Give the client control of the player
      %this.vehicle = %vehicle;
      //%this.setControlObject(%vehicle);

      error("leaving racing.game.cs");
   }

Can someone tell me what I have done wrong or need to do to fix this?