I have come across these on EBay and wondered if anybody had come across these aerials or indeed got one fitted on their own car? The big BMWs come with the real thing but for a few quid these seem alright? Or are they?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=23012&item=7963920254&rd=1
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=23012&item=7963920254&rd=1