Rob, as I was telling Brian in an earlier post, I replaced the O.E. wheels on our 91-300e with a set of 16 inch Mille Miglia Bello wheels with 205-55 16 Continentals. They came as a package from the Tirerack.com. You can see them on your car of choice on their website.
We constantly get people telling us how great our wheels look and the price was less than a grand.