Adjusted the spawning script & moved spawn points in the racetrack level to get the desired spawning arrangements - the middle point will be used only with an odd number of players, and the spawn points to the side will be used first.

Also fixed a typo in RaceTrack.asset.

Assets/Data/GameModes/RaceTrack.asset

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0eedf461cce898250d2873a3ff2a1f4ee0b60948e25aa522f883be11466a7bff
-size 610
+oid sha256:7f5cdbec085a5c46b44e8e6ce1963d8899bbee24609c8da0aef8d81d1154db91
+size 609

Assets/Scenes/RaceTrack 4-player alpha.unity

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:538b6d0a9f674651ddf84328d0bf3e5dbef70f61102316f24cabf9ecba1b34c5
-size 2720169
+oid sha256:d2fcdafd3ea73e1e59c963afedb10dafee204cac96e5a3914fedd692e3d74a3b
+size 2720958

Assets/Scripts/Managers/GameManager.cs

@@ -151,11 +151,25 @@ public class GameManager : MonoBehaviour
         playerData = new Dictionary<int, PlayerData>();
         Block[] SpawnBlocks = FindObjectsOfType<Block>().Where(p => p.isSpawnable).ToArray();
 
-        int spawnIndex = 0;
+        int blockIndex = 0;
+        foreach (Block block in SpawnBlocks)
+        {
+            Debug.Log("Block #" + blockIndex++ + " (" + block.transform.position.x + ", " + block.transform.position.y + ", " + block.transform.position.z + ")");
+        }
+
+        //int spawnIndex = 0;
+        //If we have an odd number of players, then we start at spawn point 0 (in the middle)
+        //If we have an even number, then we skip it
+        int spawnIndex = ((ClientList.Count() + 1) % 2);
+
+        //int spawnIndex = 0;
+
         foreach (ClientData client in ClientList)
         {
+            Debug.Log("spawnIndex = " + spawnIndex);
             Character newChar = Instantiate(characterPrefab);
-            Block startingBlock = SpawnBlocks[(spawnIndex++ % ClientList.ConnectedClients.Count)];
+            //Block startingBlock = SpawnBlocks[(spawnIndex++ % ClientList.ConnectedClients.Count)];
+            Block startingBlock = SpawnBlocks[spawnIndex++];
             newChar.Initialise(startingBlock, client.Inventory, client.characterAnimal);
             newChar.transform.forward = startingBlock.SpawnDirection.ToVector();
             playerData.Add(client.ID, new PlayerData(newChar,client));

ProjectSettings/EditorBuildSettings.asset

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d9be158173aa5555933e44bfa66f3ea19bb0cb9804d6a2aa9a10eb8742e1d91f
-size 1888
+oid sha256:ca5f18261fab72b72752ecf93ad8fd347fea19843b3184e007e8cba55e6dff7b
+size 2010