I have a 2002 P5 and live in the Pacific Northwest. Lots of moisture and P5 disc brakes get quite rusty. This doesn't affect braking performance, but it looks bad. Is there anything that can prevent this from happening?

Thanks for your help.

You can't do anything about the discs except leave it to the pads to keep 'em clean, but you can paint the hubs and calipers, and lots of owners have.