AC Ace prices

[Cargirl]

In researching AC Ace price's in order to price a car for a client I came across some interesting numbers.

These are recent auction results:
1960 AC Ace 9/18 not a lot of information as to original engine or not but sold for $181,321.00
1956 AEX 160 - sold for $362,500.00 older restoration but Mille Miglia eligible
1954 AC Ace "first AC Ace ever made" sold for $522,492.00

Is the AC Ace hitting the mid 300's?