BMW Z3 Wheels & Wheel Options.
There are a number of sources for wheels. One of my personal favorites is Tire Rack. There are even options on Amazon now.
The MZ3 Roadster and Coupe received revised tail styling, an inner top liner and a new center console for the convertibles. The M model remained the same in exterior and interior appearance, other than chrome slats and chrome headlight rings which were added to all models. BMW also had redesigned wheels and BMW’s Dynamic Stability Control which replaced the ASC traction control.