German Driving Licenses for Expats (horstmann.com)

OP, what should we take away from this article?

There are not 1200 individual questions. There are a few hundred scenarios with 5-6 variations of the surounding environment.

As for the documents. On hat to be with you when you drive and the other should be in an secure location, since it verifies you are the owner of the car.

As a lifelong Michigan resident am I to assume that Michigan does not have reciprocity?