Cannot speak for the whole country, but I had a great uncle who managed our local Chevrolet dealership and sometimes he would "upgrade" to wheel covers to help sell the car. In other words the car would come from the factory with the dog dish caps (which, if I were you, that's exactly what I would do now), but somebody would tell the salesman, "I don't like those hub caps!", and the dealership would change them to make the sale. I'm not saying it was "order of the day", but it did happen...