Fahrzeugfabrik Düsseldorf AG, commonly known as Fadag, was a German automobile manufacturer that operated from 1921 to 1925. The company was based in Düsseldorf and focused on producing a limited number of vehicles during its brief existence. Fadag distinguished itself from many other small manufacturers of the time by utilizing high-quality engines in its cars. Notably, the company offered a 2020 cc 8/35 PS engine produced by Basse & Selve,…