Suggestions on painting car rims?

Im thinking of buying black brake caliper paint and just spraying it on my rims since it's high temp. Should I sand them down, use primer, apply paint, then clear coat it? Will this method work?

What other paint can be used? Can I spray the rims on the car, I don't want to remove my wheels at all.
***That's great and all professionals can do that stuff but ANSWER the question.
 
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