GearVR detect wheather the controller has been rotated left or right

I'm trying to rotate my car with Gear VR controller to left and right. I've somehow found that the rotations are from Y-axis are b/w 270-360 & 0-90 with enough play testing(Debugging). But, I'm sure it's ugly code.

**Question**

How can I get the rotation values and how do I map them b/w (1)-(0)-(-1) so I can assign them to my `CarController`.

**Logic I've implemented** [![Image][1]][1]

I'm converted values 270 to 359 in 0 to -90 than dividing them by -90 to map them from 0 to -1

        private CarController m_car;
    
        // Use this for initialization
        void Start () {
            m_car = GetComponent<CarController>();
        }
        
        // Update is called once per frame
        void FixedUpdate () {
    
            OVRInput.FixedUpdate();
            float angle = 0;
           
            if (((OVRInput.GetLocalControllerRotation(OVRInput.Controller.RTrackedRemote).eulerAngles.y >= 270 &&
                    OVRInput.GetLocalControllerRotation(OVRInput.Controller.RTrackedRemote).eulerAngles.y <= 359)) ||
                    ((OVRInput.GetLocalControllerRotation(OVRInput.Controller.RTrackedRemote).eulerAngles.y <= 90 &&
                    OVRInput.GetLocalControllerRotation(OVRInput.Controller.RTrackedRemote).eulerAngles.y >= 0)))
            {
                float rotationValue = OVRInput.GetLocalControllerRotation(OVRInput.Controller.RTrackedRemote).eulerAngles.y;
                
                // if the value is 3 digit than subtract it from 360 and make it negative
                if (Mathf.Floor(Mathf.Log10(rotationValue) + 1) == 3)
                {
                    rotationValue -= 360f;
                }
                rotationValue /= 90f;
    
                angle = rotationValue;
            }
    
            float torque = 0;
    
            if (OVRInput.Get(OVRInput.Button.One))
            {
                torque = -1;
            }
            if (OVRInput.Get(OVRInput.Button.PrimaryIndexTrigger))
            {
                torque = 1;
            }
    
    
            m_car.Move(angle, torque, torque, 0f);
        }
    }

> BUG: It works right sometimes but it doesn't work sometimes. Sometimes I get different angles & car movement looks buggy(only moves right). So my logic fails