Yeah - I've seen them before. The problem is getting a splined adaptor for the BMW hubs
MWS do some bolt on wires:
http://www.motorwheelservice.co.uk/S...s&Category=009
but nothing in the e30 4x100 fitment. The German ones didn't seem too bad - About £650 for four wheel, spinners & the bolt on splines if the eBay lisiting I found them on is correct