Not to throw a wrench into the subject....I know the 15" with chrome rims are called Magnums but are the 14" with trim ring not called road wheels?
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You sure did, wrench inserted!
I did some checking, without all of the answers, but a W21 in 69 was called a Road wheel and from 70+ it was the known as the Rallye wheel. A W23 from 70+ was called a Road Wheel. I couldn't find where they called it a Magnum 500 in Chrysler documentation?
Anyway, know what you're looking for CraigRTSE.
Slotts