Looking back at the SCCA’s entry list for the 1955 Palm Springs road race March 26-27 1955, Howard Darrin entered two Darrins. Number 162 driver was Maxine Elmer [Briggs Cunningham’s wife], and it was Cadillac powered. The second 163 driver was Ralph Sinatra Jr. and it was a supercharged F- Head 161. Maxine Elmer made almost one lap and returned to the pits with no brakes, and Ralph Sinatra rolled his car over during the race. There were a couple of Darrins entered in SCCA races in later years up to 1957, but no mention of owners, just drivers. Makes me think Howard Darrin only had access to less than a handful of Kaiser Darrins and what became of them is speculation. Kaiser Darrin X serial number cars have been in the Darrin registry[DKF-X6 and KF-547-X8], very rare, but no Darrin sold cars have been heard from. As to fifty unsold Kaiser Darrins being available, I doubt that ever happened. I think Henry and Edgar Kaiser would have been too savvy to overproduce a vehicle that was not selling and was expensive to make