Go to:
http://tinyurl.com/9syk6w for the El Morocco story.
The owner of a local restaurant (Granoff's) in Little Rock, Arkansas bought one of these in '57 and he parked it out in front of his business so everyone could get a good look at it.
That's the only one I ever saw. Apparently they also built a few in 1956.... something like 25 El Moroccos, total, were built (approximate number.)
Bill