Help with converting JS to c#

I followed this tutorial, but its in javascript and i need it in c#. https://www.youtube.com/watch?v=JQiknAoC66A

Its a tutorial on how to move a car a path. I know both javascript and a little c#, but i have never really tried converting a script, so would be nice if someone could help. The script that i need converted to c# vvvv

 var centerOfMass : Vector3;
 var path : Array;
 var pathGroup : Transform;
 var maxSteer : float = 15.0;
 var wheelFL : WheelCollider; 
 var wheelFR : WheelCollider;
 var wheelRL : WheelCollider; 
 var wheelRR : WheelCollider;
 var currentPathObj : int;
 var distFromPath : float = 20;
 var maxTorque : float = 50;
 var currentSpeed : float;
 var topSpeed : float = 150;
 var decellarationSpeed : float = 10;
 
 
 function Start () {
 rigidbody.centerOfMass = centerOfMass;
 GetPath();
 }
 
 function GetPath (){
 var path_objs : Array = pathGroup.GetComponentsInChildren(Transform);
 path = new Array();
 
 for (var path_obj : Transform in path_objs){
  if (path_obj != pathGroup)
   path [path.length] = path_obj;
 }
 }
 
 
 function Update () {
 GetSteer();
 Move();
 }
 
 function GetSteer(){
 var steerVector : Vector3 = transform.InverseTransformPoint(Vector3(path[currentPathObj].position.x,transform.position.y,path[currentPathObj].position.z));
 var newSteer : float = maxSteer * (steerVector.x / steerVector.magnitude);
 wheelFL.steerAngle = newSteer;
 wheelFR.steerAngle = newSteer;
 
 if (steerVector.magnitude <= distFromPath){
 currentPathObj++;
 if (currentPathObj >= path.length)
 currentPathObj = 0;
 }
 
 }
 
 function Move (){
 currentSpeed = 2*(22/7)*wheelRL.radius*wheelRL.rpm * 60 / 1000;
 currentSpeed = Mathf.Round (currentSpeed);
 if (currentSpeed <= topSpeed){
 wheelRL.motorTorque = maxTorque;
 wheelRR.motorTorque = maxTorque;
 wheelRL.brakeTorque = 0;
 wheelRR.brakeTorque = 0;
 }
 else {
 wheelRL.motorTorque = 0;
 wheelRR.motorTorque = 0;
 wheelRL.brakeTorque = decellarationSpeed;
 wheelRR.brakeTorque = decellarationSpeed;
 }
 }

My attempt

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class CarEngine : MonoBehaviour
 {
 
     public Vector3 centerOfMass;
     public GameObject[] path;
     public Transform pathGroup;
     public float maxSteer = 15.0f;
     public WheelCollider wheelFL;
     public WheelCollider wheelFR;
     public WheelCollider wheelRL;
     public WheelCollider wheelRR;
     public int currentPathObj;
     public float distFromPath = 20f;
     public float maxTorque = 50f;
     public float currentSpeed;
     public float topSpeed = 150f;
     public float decellarationSpeed = 10f;
 
 
 void Start()
 {
     rigidbody.centerOfMass = centerOfMass;
     GetPath();
 }
 
 void GetPath()
 {
     public path_objs : Array = pathGroup.GetComponentsInChildren(Transform);
     path = new Array();
 
     for (public path_obj : Transform in path_objs)
     {
         if (path_obj != pathGroup)
             path[path.length] = path_obj;
     }
 }
 
 
 void Update()
 {
     GetSteer();
     Move();
 }
 
 void GetSteer()
 {
     public steerVector : Vector3 = transform.InverseTransformPoint(Vector3(path[currentPathObj].position.x, transform.position.y, path[currentPathObj].position.z));
     public newSteer : float = maxSteer * (steerVector.x / steerVector.magnitude);
     wheelFL.steerAngle = newSteer;
     wheelFR.steerAngle = newSteer;
 
     if (steerVector.magnitude <= distFromPath)
     {
         currentPathObj++;
         if (currentPathObj >= path.length)
             currentPathObj = 0;
     }
 
 }
 
 void Move()
 {
     currentSpeed = 2 * (22 / 7) * wheelRL.radius * wheelRL.rpm * 60 / 1000;
     currentSpeed = Mathf.Round(currentSpeed);
     if (currentSpeed <= topSpeed)
     {
         wheelRL.motorTorque = maxTorque;
         wheelRR.motorTorque = maxTorque;
         wheelRL.brakeTorque = 0;
         wheelRR.brakeTorque = 0;
     }
     else
     {
         wheelRL.motorTorque = 0;
         wheelRR.motorTorque = 0;
         wheelRL.brakeTorque = decellarationSpeed;
         wheelRR.brakeTorque = decellarationSpeed;
     }
 }
 
 }

The errors i got:

Assets/FortheGame/CarEngine.cs(32,10): error CS1525: Unexpected symbol public' Assets/FortheGame/CarEngine.cs(35,15): error CS1525: Unexpected symbol public' Assets/FortheGame/CarEngine.cs(39,5): error CS1525: Unexpected symbol }' Assets/FortheGame/CarEngine.cs(47,1): error CS1525: Unexpected symbol }' Assets/FortheGame/CarEngine.cs(51,10): error CS1525: Unexpected symbol public' Assets/FortheGame/CarEngine.cs(52,10): error CS1525: Unexpected symbol public' Assets/FortheGame/CarEngine.cs(65,9): error CS1547: Keyword void' cannot be used in this context Assets/FortheGame/CarEngine.cs(65,10): error CS1525: Unexpected symbol (', expecting )', ,', ;', [', or `=' Assets/FortheGame/CarEngine.cs(83,1): error CS8032: Internal compiler error during parsing, Run with -v for details

Thank u, hope someone can help :)