Ultra-cool Rat Pack/Pimpmobile coupe, but what IS it?

I saw this car parked in front of a house in West Los Angeles lately and it caught my eye:

Driving (much less owning) one of these bespoke semi-pimp cars from the 70s or 80s is falls under the Fantasyland category, but there's an unassailable coolness factor to this category of automobile and it would be fun to cruise around town in this for an afternoon. I mean, deep down, wouldn't we all want to be a member of the Rat Pack, or be hanging out with Superfly?
There's enough chrome on this car to shine up everything in nearby Beverly Hills that isn't already plated in gold. In fact, this car might have presaged the trend to chrome the entire car.  and it would seem that front-end aerodynamics weren't high on the designer's priority list. One would think that if you were driving a car like this, you'd have so much cash on hand that fuel economy wouldn't be a big deal. The Stutz Blackhawk (if it's good enough for Elvis Presley, it's good enough for me),  Dual Ghia (my fave in the category), and even the Excalibur (still available!) and Clinet cars were perfect for this market (although the Mercedes-inspired latter two cars never particularly inspired me). Gas probably didn't cost much at that point anyway, so mpg obviously wasn't one of the selling points. 
This car looks as if it's been fairly well maintained, although perhaps age (and gravity) are catching up with it. My question is, what is it? It's got the some of the lines of a fourth generation (67-70) Cadillac Eldorado but has that vague "Italian designers crafts something he thinks the Americans would go for" vibe to it. Or maybe it's a one-off from George Barris, Dean Jeffries, or one of the other car customizers who were working in LA back in that era. Does anyone have any thoughts as to what this is, who designed it, and what's underneath the acres of metal bodywork?

Comments

[Stelle Courney]

This reminds me of the car in Mad Max, the Pursuit Special driven by Mel Gibson. It does look well maintained. However, I think it needs a little buffing on the rims. Still, it looks very nice. And I'm sure it'll tear the road when it runs.