The GT prototype was bid to 500K but was RNM.
Meanwhile, I just have to say I am 100 percent in favor of nearly every choice made here, except maybe the strakes on the fenders.
https://bringatrailer.com/listing/1983-bmw-525i-3/
EDIT:
OK, if I'm nitpicking, I don't really dig the contrasting seats. And it could use a better, more retro radio. And maybe a BMW logo horn button.
Other than that, and scraping off the Notre Dame sticker, no edits.