Some of the Hungarian-built cars are covered in the book, Magyar Autó (Hungarian car). Others, which are not in the book are not covered at all - anywhere. What's the point of publishing a picture of, say, an NG, a Hungarian one-off from the 1930s when all I've got is a photocopied brochure? It was never mentioned in contemporary magazines, was never mentioned in books etc.
And Ecnelis is right, this is the Leila Nemesis, a recent project by the Willisits Engineering company. Vilmos Willisits set up Intermotor Ltd in the early 1990s and ripped me off when he brought the Mini-T golf cart project to Hungary. Not just me, but he managed to rip off the original designer and builder of the Mini-T, a Hungarian who moved to USA in 1956....