Nice guesses, but since I have 2 +, I think I can speak with a little authority. That is, as stated a Kellison GT40K. I have assembly manuals as well as headlight covers and other parts that are spares. It can set on a VW chassis, both of mine currently are, but they offered old school V8 to Corvair midengine chassis. I have one sold that will get a 1600 dual port engine from the other one. The second one I am building a lightweight aluminum chassis for and haven't decided on which motorcycle engine I will use, probably Valkyrie. The corvair shields are still available at $185, very cheap. If anyone here buys it, I can supply about any info or parts and what I can't I can direct you to.
It was based on the prototype MKII that had a long nose, and are very close to a GT40 with the main exception being the windshield and surrounding areas that blend into it( door and hood opening areas. Several companies used the molds, with revisions, one was T-3, I also believe that maybe L.A. Exotics also used it at one point. Neither made it any better looking, usually worse. Kellison was one of the larger 'glass companies in their period and were predominantly known for their front engine cars as well as dune buggies,boats and FV cars among a load of other stuff. The Stallion body was from the old Kellison molds, so their is a lot of history. check out
www.priceofhistoys.com for info on it and about any kit car you could think of.