Sound is so loud it stops conversation or hearing the radio play, took it back within days to dealer was shown an internal memo to service techs that enginering was aware of the problem but they had no fix and to tell customer that this was normal? with this size car. I have a smaller Nissan and it,s not normal for them they would consider that a problem. Greater concern is that I also own a 2005 Aveo which just self destructed when the timing belt failed so now I'm waiting for the shoe to drop with this car.