In the winter my BMW's interior sounds like a bag of twigs and out of the 3 items I had the dealer fix because of creaks and squeaks, 2 of the repairs created whole new ones.
My Infiniti by comparison which by the time I sold it had 75,000km over the course of 6 years was totally flawless. Not a peep from any of the trim even when driving over rough terrain, and the only thing that ever went wrong mechanically and had to be covered by warranty were two oxygen sensors and a crankshaft position sensor. Other than regular fluid and filter changes I only had to have the belts changed once and that was it.
2010 Mercedes-Benz C350 4Matic
2006 BMW 330xi - Gone