What's this, by whom, based on what and from when - for 1 point?:
ANYONE FOUND GIVING ANSWERS OBTAINED BY USING GOOGLE SEARCH BY IMAGE MAY BE BANNED FOR AN INDETERMINATE PERIOD!
Experts?
This took way too much time as I was hung up on a 1950/51 Oldsmobile as the donor car. I must have looked at a hundred photos of the "Polynesian" Olds trying to find this puzzle car.
I finally gave up on the Oldsmobile connection and tried Ford.
Anyway, it is a 1951 Ford named X-51 built by Ron Courtney perhaps around 1958.
I do not know if it is still about.
That's it!
Actually it took him about 3 years to build, from 1954 to 1956..
Well done!
Here's another picture: