It's not a Le Cab. Those are factory (Hess and Eisenhart) scripts on the quarters, though! It is a 95/6 Fleet that has been modded to two door, and with a convertible conversion. Not easy, not cheap! I believe the price on the side glass alone is 6k!
This is a perfect example of the right way to do a custom. Real original looking. Sure the rims have been done, every 80+ Cadillac has an E&G grill, and the car looks like it can dance, but there were no thirteenth gen coups and no factory convertibles (aside from Eldorado).