In the thread on 'politically incorrect Auto-Unions', a picture of a group of 4 MB museum cars, a W196, a W165, a W154 and a W25 was posted. (Sorry guys, I am not computer literate enough to give the link

The W154 is in a shadow and looks more like a '38 car to me, but I was not aware that MB had a '38 car, imagining that the '39 cars used the '38 chassis.
So, does MB have a 1938 W154, and if so, is it a reproduction or an original?