I've never seen a clear coated chrome plated wheel. However, I have seen lots of OE (GM primarily) highly polished aluminum wheels that could pass for chrome with a clearcoat on them.
Chrome is a very hard plating that is quite forgiving. It's easy to clean (if you're afraid of acid based cleaners, glass cleaners work very well) and looks good to boot.
The down side - if you get curb rash the wheel must be stripped and replated. Most chrome wheels don't even rust since they're aluminum, and not steel like in the old days.
Chrome Polishes are really good for removing brake dust that has built up on the wheel and isn't removed by just spraying a cleaner on and hosing off.
And, Chrome Polish works really well as a glass cleaner (the rockwell hardness of chrome and glass are close to the same, so what works on one works on the other.
If you ever get that vinyl vapor (or cigarette smoke) on the inside of your windows, and have a tough time removing it, try chrome polish - it'll make the glass sparkle like you've probably never seen before.