old z4 had little road noise from top, 10 plate had even less. 62 plate has less road noise from the runflats must be the m sports suspension, and less exhaust sound 10 plate was 3.0 new is 2.8 ummmm.
I do remember the 10 plate rattling in cold weather. Had major rattling in the 03 but nothing in the 06 and 08.
The 06 had a stone chip which was repaired badly and cracked so auto glass replaced with non bmw glass, I did question this but the installer said it was the same stock as bmw, and it was shocking the curved edge had major air bubbles in. I noticed that after some time up at 60mph had wind noise. Took to bmw to check and they found major water leak in the glass, infact the glass was not sealed at all in over 3/4 of the screen leaving the car intrinsically unsafe and it was cracked at the lower section in the black area, due to a cam shell chip that had propergated. bmw did not charge me for this. Auto glass replaced the glass for a bmw stamped glass. I will never ever have any other glass other than a bmw stamped oem. dont be conned that its the same glass.