I just wanted to leave a note here that I added Czech producer Jaromír Kallista as stunts because according to the book of his memoires "Filmař Jaromír Kallista" (in Czech, Nakladatelství AMU, 2009) he played double of Jürgen Frohriep (racer Manfred von Brauchitsch) in car scenes. Jaromír Kallista was amateur racer and left his production job on Konec srpna v hotelu Ozon just because he didn't want to miss this opportunity.