Here is a few more photos of the car and motorcycle collection from Speyer, Sinshiem and Munchen Technology museums in Germany. Most of the bikes are of German manufacture and many were completely unknown to me. Unfortunately I don't have the details of all the motorbikes so I'm happy for people to advise me.
A German Phanomen from 1905 (Munich)
A flying NSU
NSU Bison 2000 racer
NSU 1000 racer
Sinshiem had a large collection of Neander racing bikes and cars from the 1930s.
The Neander motorcycle display
The Neander racer display
Neander 3-wheeler racer
Neander had a very successful racing career between the mid 1920s and 1938 when the company was wound up and given over to war production. NSU and Opel both borrowed ideas from Neander designs.
DKW twin cyclinder. In the 1930's DKW was the worlds best selling motorcycle. After the war their engine designs were handed over to Harley-Davidson, BSA and the Russian Ural and Pannonian. DKW itself had a convoluted history, becoming part of AUDI, Zweirad Union and Adler. In East Germany their Zchopau factory became MZ.
Opel were both a car and motorcycle manufacturer. They were later swallowed up by General Motors. In Australia the Holden Astra & Barina are rebadged Opels. In the UK they are sold as Vauxhalls. In response to GM's current financial difficulties, the German government initiated a buy-out of Opel in an effort to save German jobs.
1920's Puch from Austria
Hercules & Mercedes
A 1920s Zundapp
Zundapp and sidecar (Munich)
A Zundapp and sidecar. Followed by a BMW.
An early BMW. I don't know why this one was in a case. Obviously a rare and valuable machine.
1926 BMW R62 (Munich)
BMW - to my mind this the look of a classic BMW. I'm not a fan of the new models.
The Ardie RBK 200
1954 Adler MB 201
Very rare and stylish for its time - 1920-32 Mars A 20
The Bohemian motorcycle company, Bohmerland (now part of the Czech Republic) had a novel approach to making motorcycles an effective means of mass transport - they built enormous multi-seat bikes. Featuring the longest wheel base of any motorcycle, their normal 300cc production bike was built for three passengers as standard. Stretched models could seat at least four. I'm not convinced these bikes would have been very comfortable for either passengers or rider and the turning circle would have been enormous.