public void Accelerate(GearShiftBoundaries gearShiftBoundaries)
        {
            var currentRpm = _externalSystems.GetCurrentRpm();

            if (currentRpm < gearShiftBoundaries.DownshiftBoundary)
            {
                _gearShifter.Downshift();
            }

            else if (currentRpm > gearShiftBoundaries.UpshiftBoundary * _rpmUpshiftFactor)
            {
                _gearShifter.Upshift();
                _externalSystems.MakeSound(new SoundVolume(40));
            }
        }