Very interesting find PJ.
I did originally have doubts about whether my answer was correct but I had nothing further to go on.
Sports Car Engineering's (or Sport Car Engineering as they called themselves) address was at 5807 Sunset Boulevard, Hollywood 28, California.
I understood that they were the main agents/imports of Microplas bodies in the USA.
I've never heard of Track Kraft before but it seems clear that they were offering Microplas Mistral bodies at around the same time.
However it doesn't really answer what the car featured was called or what it was based on.
It seems quite distinctive with that forward air-scoop but I haven't come across another photo of it so far.