I found the puzzle image online. At the top of the image was the name of the car. I do not know of a web page which contains both the name Farhner, and the name of the car in text form.
We may just be reduced to guessing the number of letters, and spelling the name one character at a time.
It is a nice looking car. Too bad that no information about it survived the 60's. Given the proportions of the car, it was either rear-engined, or didn't have an engine.