Yup, the point of the '63 cars was to put them in the hands of average folks for a while and get their feedback.
IIRC, there were 50 cars, and they were rotated among the public for about 3 months each for about a year.
I'm thinking the styling was an effort to increase desirability; I thought they looked great then & still do.
I'd bet the others were one or two builds, and probably crushed afterwards, as Chrysler tended to do.