these are not mine but i know people are always looking for them http://cgi.ebay.co.uk/BMW-Z4-ALLOY-WHEELS-GENUINE_W0QQitemZ170400796021QQcmdZViewItemQQptZUK_CarParts_Acc_Wheels_tyres_Rims_Car_Wheels_ET?hash=item27acadcd75
those are the slightly different ellipsoids with the raised bits around the nuts, price is a touch high i think as you'd probably change all 4 tyres, but look tidy
