Stumbled across this on ebay, looks quite promising. Judging by the pictures, it's been tested on a clio sport, cup model if I'm not mistaken.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=007&item=170030108521&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=007&item=170030108521&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1