How to re-enable multiple components in one script

Hello. I have this script of a countdown for the car game. When GO text is displayed the car controller is reenabled on cars. The problem is it works for only the first object listed ("quagliatta 3(Clone)") a nothing after it. Can somebody please help me to reenable it for other objects too? I am beginner in C sharp. Here is the script:

using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI;

public class countdown : MonoBehaviour { public GameObject CountDown; public AudioSource threesound; public AudioSource twosound; public AudioSource onesound; public AudioSource ready;

 private void Start() 
 {
     StartCoroutine(CountRoutine());    
 }
 
 IEnumerator CountRoutine()
 {
     yield return new WaitForSeconds(0.5f);
     CountDown.GetComponent<Text>().text = "3";
     threesound.Play();
     CountDown.SetActive(true);

     yield return new WaitForSeconds(1f);
     CountDown.SetActive(false);
     CountDown.GetComponent<Text>().text = "2";
     twosound.Play();
     CountDown.SetActive(true);

     yield return new WaitForSeconds(1f);
     CountDown.SetActive(false);
     CountDown.GetComponent<Text>().text = "1";
     onesound.Play();
     CountDown.SetActive(true);

     yield return new WaitForSeconds(1f);
     CountDown.SetActive(false);
     CountDown.GetComponent<Text>().text = "GO";
     ready.Play();
     CountDown.SetActive(true);
     
     GameObject.Find("quagliatta 3(Clone)").GetComponent<RCC_CarControllerV3>().enabled = true;
     GameObject.Find("quagliatta 4(Clone)").GetComponent<RCC_CarControllerV3>().enabled = true;
     
 }
     

}