Check points for racing game

Hi! Im creating a racing game in unity and for car positions(e.g Pos:2/8) and lap systems one of my friends gave this piece of code to me....but it counts from 0 to 8... u know... when you are in the last position it writes Pos:0/8 instead of 8/8 and when you pass all of the cars it writes 8/8 instead of 1/8 and the code is here: using UnityEngine; using System.Collections; using System.Collections.Generic;

 using System.Linq;
 
 public class CheckpointManager : MonoBehaviour {
     
     public List<GameObject> EnemyCars = new List<GameObject>();
     public TextMesh PosText;
     void Start()
     {
 
         
         GameObject pLayer = GameObject.FindWithTag("Player");
         EnemyCars.Add(pLayer);
     }
     void Update()
     {
         GameObject _Player;
         int _PlayerPos = 0;
         for(int i=0; i<EnemyCars.Count; i++)
         {
             if(EnemyCars[i].name == "Player")
             {
                 _Player = EnemyCars[i];
                 _PlayerPos = EnemyCars.IndexOf(EnemyCars[i]);
             }
         }
         EnemyCars.Sort(SortByPassedCheckpoints);
         PosText.text = "Pos: " + _PlayerPos.ToString() + "/" + EnemyCars.Count.ToString();
     }
     
     int SortByPassedCheckpoints(GameObject C1, GameObject C2)
     {
         return  C1.GetComponent<CheckpointTrigger>().PassedCheckpoints.CompareTo(C2.GetComponent<CheckpointTrigger>().PassedCheckpoints);
     }
 }

Please help what should i do...thanx