I got my 13" discs for my Metro tonight as well. Haven't driven it yet to see/hear the squeeks. I doubt I could hear it over the alternator belt anyway, it's making a racket. Looks cool though. I wish I would of paid $18-$30 for them. I am gonna be mad if I lose one.
I think it may just be the metal teeth on the metal rim.
I wonder if it would help to paint a little "Plasti Dip" (paint on rubber coating) on the grip teeth? I know that rubber is flexible (so shouldn't be a problem with the movement of the teeth), and also tends to grip (non-slip) a little better than metal. So maybe it would be useful to cut down on the noise?
Well, made it all the way in. With the windows up never heard them, 3 of them you need the lug/pry bar to pop them off the left rear you can get off by hand, still working on that one. Pictures later today, have gotten some stares and comments in the garage. Lead to more of is that a hybrid.
I'm thinking that something is flexing and making the squeeking noise - says something about plastic hubcaps doesn't it. Plastic dip would be a good idea as well as cleaning the rims. Anyone notice any FE improvement with the caps and have photos of them on the car? Would like to try a 15" set on my not so aero 7 spoke mag caps on my xB that surely must be pumping air around like crazy.