Standard features is what comes on the standard model. Then you can have optional features added. i.e. you could have a base model with optional wheels installed. Take a picture of your wheels and post it here that way we can make bloody sure what you have. If you have steel wheels with hub caps, the hubcaps are held on by the lug nuts, but it you remove the lug nuts and the wheel, the plastic hub cap will come off. On aluminum wheels, there is no hubcap. It's all wheel. On the chrome clad aluminum wheels, yes there is a plastic chromed cap over the aluminum, but it is not removable without a ton of work. It is epoxied to the aluminum. So, you have 3 choices: steel wheels with hub caps, aluminum wheels, or chrome clad aluminum wheels.