The steering is very interesting, can i ask why you have converted it to a Rack? rather than the box?
I also run Bmw rims, but mine are 19", theyre proably alot more common over here though.
First reason is simplicity of the rack since the subframe was custom made, it uses 2001 corvette a arms, spindles, and brakes. Other reasons is lighter, takes up less space, and has a tighter steering ratio. Plus the fact I came from 4th gen f body's, so that is what i know
The BMW wheels do look good, but they are just mock up wheels as these are just a buddies wheels that he has laying around. I will be running 18x12's on the back and that just isn't an option with the BMW wheels (unless i actually had them widened).