There was
a multitude of German engine manufacturers during the course of World War II.
I have only listed, a small number of the more famous companies and will continue
to keep adding to the list
Gallery: Sources: German Military Vehicles.
ISBN-10: 087349783X
Armoured Fighting Vehicles of Germany World War II.
ISBN-10: 0214203077
Encyclopedia of German Tanks of World Two.
ISBN-10: 1854095188
For a complete list of
sources 
