The book where you found this drawing says it is a 1929 MÁG Magosix sports. The text also claims it was raced by C.C. Friese.
C.C. Friese was an Austrian racer, he last raced a Magosix in 1927.
The whole drawing is based on an ad from 1929 which shows a Magosix sports. There was no other mention of this version anywhere.
This book is not very reliable when it comes to Hungarian cars.
When I created this puzzle, I was certain of two things: 1) you were the person who would solve it, and 2) you would have additional information to add. The point is yours!
I didn't find this drawing in a book. My source was an article that appeared in a quarterly publication of an organization, of which I believe you and I are both members. The author describes this car as a "speedster" by C. C. Friese on a MÁG chassis, with no mention of year or model type. He identifies Friese as a Budapest-based coachbuilder and states that he also bodied a MÁG touring car.
A photo from which this drawing was taken claims it as a 1927 Magomobil Sport.
Please post the photo; I would love to see it!
Edit: I forgot to mention that the source article includes an interesting note from the editor
(see image
gte727c below).
