Kris I do appreciate your comment re: the thermal properties of plastic.

I've had my car since June 2 and can tell you the noise difficulties, rattles, squeaks, creaks and thumps were loud enough to make my passengers comment even when it was 33 degrees C outside. A TSB for the rear suspension has been released re: this and a "notice" re: loose venting in the dash, as well as my squeaking brakes which had to be shimmed. I do agree though owners of the our car are probably more generally informed than the average car buyer and tend to demand the level of service and quality that should be expected, but seldom demanded from new car buyers. IMHO.