Ropat, you're setting puzzles that few Europeans will solve ! That's Carlos Zatuszek in his Mercedes-Benz SSKL. He came 2nd in the Argentinian championship in 1936.
Sorry, I meant third place. My Spanish again!
I really thought this one would be easy, because Zatuszek and his car are very well know all over the world.
You are correct, that is Austrian-Polish-Ukrainian born Carlos Zatuzsek, one of Argentina's most famous race car drivers, unfortunately he was killer in this same car in 1937, but you haven't the car quite right, your'e almost there, only one letter away.
Language shouldn't be a problem because plenty has been written in English, about the driver and the car.
So locked for nicanary.