BF (Bolle & Fiedler)
The Bolle & Fiedler engine factory was a German automobile manufacturer, which had its seat in Berlin Charlottenburg from 1923 to 1926 .
Under the name BF there a sports car with three-cylinder - two-stroke engine , which had a capacity of 1026 cc. There were also racing cars with six-cylinder two-stroke engine , but had problems with the stability.
Automotive manufacturers Berlin Charlottenburg, Germany from 1923 until 1926.