Ok. Woody Woodill started building the Wildfires using Glasspar bodies with Willys components, including the F-head 6 motor. As things moved along, he (Woodill) began offering bodies, frame kits and complete cars. Some of 'em had Willys components, others used Ford and a couple used Cadillac and Buick. By the looks of the headlight bezel on this one, I'd say that there's a good chance that it's one of the Buick- or Cadillac-powered ones.
There were some totally custom-built Wildfires, including a fastback built in 1956, but they all stemmed from the original Glasspar design although the design metamorphosed somewhat over the course of its production.
I hope that's what you're asking for.