Ya know, I wouldn't exactly call what I have "rattles", but the interior does have a few slightly annoying intermittent "buzzes" and the headliner creaks a tiny bit (as does my wife's 2004 BMW, btw). The buzzes manifest themselves mostly on the bumpier roads and highways and the "creaks" happen when the car twists a little, like on a driveway entrance. I attribute the creaks to the fact that the cabin is so darn quiet that you can actually hear the car flex (which all cars do) so it doesn't bother me.
Overall, the interior is pretty quiet though.
