It'll open at $100K and race up to a "reality" pretty quick. That reality is probably a hammer price of $625,000 which is $687,500 all in. That's realistic given it's history and past performance of such stuff with an added measure for inflation (check all results lately). @Moriarity is right, customs seldom to never do well, but the caveat is Mercs. In the car world people only know "chopped merc" and tend to pay over market for anything that's a 49-50 Mercury custom. This one? It's "the one" and has had all the mystique, urban legend, clones and more around it it's whole life. How that plays might be way higher than I'm even giving it credit for but that shit sells. Still, it's not likely to be seen at the weekly cruise night wherever it ends up. Some mega collection or genuine enthusiast will get it and most exposure will be limited to the occasional concours and some specialty events paying tribute to the era and builders. That's my take, and even though I think I could be way wrong (too low) I can't help but stay with how customs generally suck at auction. And why Mecum? I have a lot of respect for their ability but a Barrett Jackson sale would get out-of-the-park silly. At the same time given the success with "Bullitt", The Kookie Car and Golden Sahara recently by Mecum, maybe...?