The Haris brothers were cheaters, they forged documents, cars etc.
And I was looking for that photo, but couldn't find it quickly - thanks nicanary
C.C. Friese was not a coachbuilder, he's got nothing to do with this car. He was an Austrian, who worked at MÁG for a brief period of time, but he was definitely not a coachbuilder. And I like the Magomobil Sport designation better