In about 1983 I was done in KC and the Pro street craze had just started.
There was a bright red 66 GTO that had been "back-halfed" and had a very large set of M/T just about touching in the middle.
At first the guy was an a$$ but then when he knew we really wanted to know about the car he let us go to his shop and see a bunch of pictures from the build up.
I still look for the car but have not seen it over 20 years.
Sure there where the magazine cars like Rick Dobbertin's J-2000 but that car was so wild at the time it might as well been from another planet.