Kakis,
I've just changed my engine and gearbox mounts and realized quite a world of difference in terms of smoothness in driving. The smoothness can be described as you feel less vibration from your steering wheel and also the cabin seems a little quieter. 204 has clocked 90k and see&see informed that the engine mount was low. Changed outside with original parts installed, so avoided the monstrous bill from see&see.
Now, the car seem more like brand new. May work for you too if you haven't gotten these parts changed recently.