There's a salesman's trick called "Anchoring".
"So, let’s bring this concept to the surface (pun intended). Anchoring is generally used by a seller, which as a hypothetical example we will say the seller is happy to sell their product for $500, but to get the $500 they expect their customer to fight over price. The seller then sets an anchor – the price for this particular service is $1,000.
The more the seller can do to plant the anchor firmly, and not let it drag, the more grounded the anchor price can be sustained. In the end in this case, our buyer is able to negotiate pricing down by a whopping 20% and declares victory for having taken the price down from $1,000 to $800 – a tremendous cost savings…or so it seems. Meanwhile the seller is equally pleased, having sold their product at a 60% premium over what they would settle for."
(credit - flynndex.com)
So now if the dealer prices of Daytona's jump 20%, they seem like a bargain compared to the Christies auction. The only problem with this is the other auctions around the Christie's auction where there is a huge price disparity for similar models.