Has anyone gone to the antique Mercedez parts store, Neimuller, near Mannheim?

Mannheim has some interesting looking buildings but virtually nothing goes back beyond the rubble of 1945. I don't know the store https://www.niemoeller.de/en but the address is in the district of Mannheim Friedrichsfeld - and that is so far from central Mannheim you would be closer (15 minutes train or car) to Heidelberg which is well known amongst tourists for real old buildings, university and museums (and as a US Army HQ). But I suspect that husband would like to press on that bit more to the Mercedes museum in Stuttgart (dangerously close to the Porsche museum......)

Thanks for the reply, Steve. We are just starting, our planning so will keep your thoughts in mind. I'm sure he'll want to visit sit the Mercedes Museum!