Hi Everyone, this is my first post on this site so appologies if this has been commented on in the past. I have taken delivery of a new Galaxy grey 1.8ES just over a week ago, and have noticed that there is an annoying rattle which appears when the car reaches aound the 40 - 45mph mark and continues over this speed

It is audible inside the car. Under 40mph, the noise disappears (even on rough roads). I think it might be a piece of trim external to the car, but was wondering if anyone has had a similar issue before and could direct me to the likely possible candidate for the source, before I take it back to the dealer and they strip the whole dash apart!!
Great web site by the way

and very helpful reading prior to purchasing the car!