I wanted to rename this thread, due to facts discovered on this forum. Thanks, guys!
It's apparent now, that while Laura Maxine Elmer raced the car at the March 1955 Palm Springs event, she never actually owned the car, as mentioned by DTort, above. Howard Darrin simply asked her to drive it, as she was already a successful driver, having won the women's race at this track a year earlier, in a Jaguar 120.
After the '55 race, it was taken back to Darrin's studio on Sunset Blvd. and remained on display as an example and was eventually sold, after quite some time, as Gordie stated in a reply above. I had long wondered, if this car was hers, why it fell into such disrepair, being stored outside, etc. Whomever bought the car from Darrin must have paid much less for it and didn't give it the garage storage it deserved.
Thanks so much for this information. Steve Karlock and I discussed some of the car's history as I worked on the restoration almost 30 years ago and while he did attempt to speak with Darrin family members at the time, they seemed unwilling to supply any further details. This is all making sense, now!
Time heals all wounds and Howard Darrin would now be very pleased to see how revered the production Darrins and the special V8 version have become, with these other cars converted over the years!