I do not think Brera mirrors would help. They don't look much different. You could try sculpting your own mirrors out of foam, as I have done on my Civic (see thread: "Ren: My '92 Civic" in our Ecomodding Central forum). That way you can make them much smaller and quite possibly much better Cd than the stock ones. I used the stock mounts, and you likely could as well.
