Originally Posted by MIC328i
This is just to chime in to this rattle topic, I am surprised to hear so many fellow members having rattle problems on their M3. I came from a E92 335i and there were 0 rattles what so ever during my ownership of the car. That car was also modded too with race suspension and such. Although I'm glad that I haven't find any serious rattle on my E90 M3 yet. But this gets me thinking why would the M3 being a more expensive and solid car is having more of these "Quality" related problem than a 335i.
Even though it costs more, the added cost doesn't go into the interior. The m3 has the exact same interior trim panels as any other 3 series. Take that and add a much stiffer suspension, 19s, and a heavier engine but no extra sound dampening and younger your rattles.