What the name of this BBS wheel?

[G-Man]

I've never seen this type of BBS wheel before and was wondering the name of it, anyone know?

http://santamaria.craigslist.org/pts/3762402818.html

I talked to the seller, wheel is 4X100 but it came off a Mazda Miata so it will have way too high an offset for an E30. I still like the wheel, it's different, not something you see every day. I would like it more if I found it in 15" or 16" with a lower offset.

G-Man

[E30SPDFRK]

BBS RD. They're not the rarest BBS out there, but they're not too common either. I've seen them from 14-17"