Exor (Excelsior Machinery GmbH)
The Excelsior Machinery GmbH was a German machine and automotive manufacturer based in Berlin during the 1920s.
Cars built between 1923 and 1924 they built a small car under the name Exor .
The vehicle had a 5/16 hp four-cylinder in line engine from Atos . The designer was Karl R. Neumann .