Van Bullock's car in the movie, a Rolls Royce, was in fact Christian Anders' own car and "M-HM 1634" his original license/number plate. The "M" stands for Munich, the town he was living at the time in Germany.
In real life, Christian Anders also led karate schools in Munich and Fürstenfeldbruck for a while.
In the English version it is said that Komo is castrated, whereas in the German one he is not.
Although Christian Anders speaks perfect German, his voice was dubbed for the German version by Manfred Seipold - the German voice of Chuck Norris from 1977-1988.