If it moved and carried one or more persons in the last 125 years, it's probably in the Sinsheim Museum. Sinsheim is southeast of Heidelberg. For me, I discovered that my Stihl chainsaw was made by a German tractor company.
sinsheim.technik-museum.de/en
(http://sinsheim.technik-museum.de/en)
You posted a link into an email in your mailbox, no one but you can see it ;P
(Unless you want to give us all your password ...)
Thanks, Rusty. I'll correct it tomorrow.