Today I noticed that my passenger-side headrest had an ugly friction scar on it from rubbing against the Roll Bar. I had a tall passenger with me recently who reclined the seat fully and this happened in one day. Perhaps you should check your cars at your convenience and see if you might prevent it ?
Anyway I improvised a solution. See thread in the how-to section HERE: http://www.z4-forum.com/forum/viewtopic.php?f=12&t=9283
Anyway I improvised a solution. See thread in the how-to section HERE: http://www.z4-forum.com/forum/viewtopic.php?f=12&t=9283