public void MoveBack(float wheelRotation, float verticalAxis) { float zSpeed = transform.InverseTransformDirection(m_Rigidbody.velocity).z; if (carContact.IsOneContact() && zSpeed > -20) { m_Rigidbody.AddRelativeForce(new Vector3(0, 0, -9000), ForceMode.Force); } Move(wheelRotation, verticalAxis, verticalAxis, 0); }