........the ones that go on buses obviously. The question is are they worth using on long motorway trips etc. I've just seen one on ebay for £50.15 inc delivery. It's not a vunderbra, but wondering if it is worth getting one to prevent stonechips. http://cgi.ebay.co.uk/ws/eBayISAPI....akeTrack=true&ssPageName=VIP:watchlink:top:en