If there had been a winning bidder, that individual would have even received a familiarization course from Callaway Cars. It’s always hard to judge exactly how much a one-off creation such as this is truly worth. The owner/seller will always aim high but there are a lot of other contributing factors like general name recognition and, of course, the “wow” factor. Callaway Cars is a highly respected company in the industry as well.
Unfortunately, the listing did not state the minimum reserve price but we wouldn’t be surprised to find out it was set at around $700,000. In any case, the seller will have to try again if they’re truly anxious to sell.