Hubcaps on Cobalt are loose fitting and every time you hit a bump or rough surface you hear squealing and rattling of covers against steel wheels. Reported problem to Chevy Dealer. Service advisor stated my vehicle was only a $16,000 vehicle and things like that are to be expected. He stated if I had maybe purchased a $50,000 Cadillac of Vett or even went as fare to say if I had purchased the optional alloy wheels, I would not have this problem. Stated there was nothing they could do for me. Note. One hubcap rolled off car and was scratched. Re-installed on car, asked dealer, but told that was a bit of touch luck! Not under the factory warranty.