Fuchs?
That's it! A lucky punch?
Anyway this car was made between 1959 and 1962 by Heinz Fuchs of Rutesheim/Germany. Fuchs was regionally known for his Fourmula V racing monoposti (and later for Formula SV). Before he founded his company 'Heinz Fuchs Rennwagenbau' in 1965 he was a panel beater for Porsche from 1962-65.
Later a supplier for high-tech racing parts he was involved in the TAG Formula 1 development.
Here's a color pic of his VW engined Hardtop-Roadster. The body was handmade of aluminium on a tubular frame. With a weight of only half a ton the neat little car was able to run 145 km/h.