I don't know if you want RFT ones, but we've got 17" Goodyear Ultra Grips on the E60 and they're rather good.
God knows how much they cost though..
Conti do their TS810s in SSR form too - £250 each for 17s![]()
Another Director at work asked for my tyre sizes and he's ordering for us both so I've no idea what I've got coming but I can't wait - I'm having real problems on a brand new set of PS2's.