Painted my Rallyes....got a question

In the summer, I bought a set of used 15X7 Rallyes. I sanded them down and painted them. First I used Duplicolour Self-Etching primer. I put a few coats of that on and then I shot the wheels with Duplicolour High Performance Wheel silver paint. I also shot a few coats of that. Now my question is, should I be clearcoating the wheels or leave them? Did Chrysler originally clearcoat their Rallyes? I also painted my grandpa's hubcaps for his Stratus with the same paint and he drives his car daily and the paint seems to be holding up fine.