Sorry... the seller (originally from eBay) found this site yesterday and sold them (for more than min bid on eBay) in a matter of hours. Oh well. If he hadn't, I would have bought them and tried them on my car, since there were numerous buyers interested at my "break even" point. Bad timing, I tell ya.
Interesting side note is that he has a 500E with the 300mm brakes, and was warping the 30mm rotors under hard use. He bought these 320mm units as an upgrade, and removed them after 5kmi because the extra weight hurt handling! Funny, most people go the other way around (small to big). Neil V claims the 320mm brakes weigh *ten pounds* more per side over the 300mm stuff! That's a lot of unsprung weight to add...
Regards,