I just found that they made Team Dynamics that might fit our car. I used to have a set on my SCCA civic and they were pretty nice and light for a non forged wheel.

http://www.teamdynamicsracing.com/pr...Pro-race12.htm

http://www.autornd.com/catalog/produ...9f618ccb807443

They come in a 18x9 15mm offset as well as an 18x8 35mm offset, plus weigh between 21-24lbs. The only thing I don't know is what the center bore size is.
You may also be able to fit some 17x9s on there for 17" drag radials.