If you visit the Benz museum(which is really great!

), itīs just a 15min trip to
"Nimpex". Only a small shop, but definitely worth a visit.
Nimpex Spiel & Buch Vertriebs GmbH
Karlstr. 10
73770 Denkendorf
When you in the near of Nuernberg, you should look for "
Modellcenter Nuernberg":
Modellcenter Nuernberg
Dallinger Str. 4b
90459 Nuernberg
Havenīt been there myself, but some modeling friends told me very good things about it. You should know, they are not the cheapest.