Vector3 euler = rb.rotation.eulerAngles;

    float yRotation = euler.y + (inputDirection.x * Time.fixedDeltaTime * speedMult * rotaRatio);

    float maxTilt = 20f;
    float zTilt = Mathf.Clamp(inputDirection.x * tonTruc, -maxTilt, maxTilt);
    Quaternion newRotation = Quaternion.Euler(0f, yRotation, zTilt);
    rb.MoveRotation(newRotation);