[Catfish]

@Skidman: BMW engines were not planned for this plane, and it never flew with engines from BMW.

@Aktungbby: It never flew with DB engines. There were special altitude engines planned from another company (not BMW or DB), but not ready at the time. So they intendend to use Daimler-Benz DB 601 engines, but they soon became to be reserved for fighter planes.
So they had to initially use smaller engines with less power, but the plane still performed promising.

The plane was built for special civilian purposes and had some very special features. The second version of this plane had a different nose, another had a changed layout for military use.
Not much were built, but it was not an experimental plane.