We have the same splines as any other e36=) Not sure where that confusion came from.
Here is the one you need:
http://www.turnermotorsport.com/p-16...series-z3.aspx If you get the right wheel it doesn't look bad. I would only get a Nardi, Momo, Personal, Sparco, or Grip Royal steering wheel. Those offer good looks and nice sizes for better driving feel.