float yRotation = inputDirection.x * Time.fixedDeltaTime * speedMult * rotaRatio;
    Quaternion turnRotation = Quaternion.Euler(0f, yRotation, 0f);
    rb.MoveRotation(rb.rotation * turnRotation);

    float turnAmount = inputDirection.x;
    float maxAngle = 20f;
    float tiltAngle = Mathf.Clamp(turnAmount * -maxAngle, -maxAngle, maxAngle);

    Quaternion tiltRotation = Quaternion.AngleAxis(tiltAngle, transform.forward);
    rb.MoveRotation(rb.rotation * tiltRotation);