Player stops move the character direction resets

Hello everyone ! My character is a car and I try to rotate it the direction it move, so far so good I succeeded to do that but once I stop moving the character flips back to the direction it was on the start. Also how can I make my turns from side to the opposite site smooth ? Here is my code so far:

 [SerializeField] float driveSpeed = 5f;

 //state
 Rigidbody2D myRigidbody;

 // Start is called before the first frame update
 void Start()
 {
     myRigidbody = GetComponent<Rigidbody2D>();
 }

 // Update is called once per frame
 void Update()
 {
     Move();        
 }
 
 private void Move()
 {
     //Control of velocity of the car
     float HorizontalcontrolThrow = CrossPlatformInputManager.GetAxis("Horizontal"); // Value between -1 to 1
     float VerticalcontrolThrow = CrossPlatformInputManager.GetAxis("Vertical"); // Value between -1 to 1
     Vector2 playerVelocity = new Vector2(HorizontalcontrolThrow * driveSpeed, VerticalcontrolThrow * driveSpeed);
     myRigidbody.velocity =playerVelocity;

     //Direction of the car
     Vector2 direction = new Vector2(HorizontalcontrolThrow, VerticalcontrolThrow);
     float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg;
     myRigidbody.rotation = angle;

 }

}