some of the clear coat has come off .
The cost of making a car or a necklace or your eyeglasses is far more than just the cost of the raw materialsForming the materials costs moneyMaking the factory and the tools used cost moneyDesigning and testing the vehicle costs money, and that has to be spread out over all of the vehicles madeIf it makes you feel like you know better if you buy an old Toyota, then enjoy it.
I used a spray-on paint remover on mine, then blasted them with a garden hoseThen I polished the aluminumThen I masked off what I didn't want painted and sprayed them with Krylon spray paintYou can either spray them with a clear finish to preserve the polished aluminum, or leave them bare and polish them as needed.