These seismic military events give context to the changes that the model underwent, and explain the shortness of its production run.

Eventually, for the 1954 model year, the model underwent a major square-lined redesign.

The different models all underwent various revisions and improvements over the years.

In its five years of production the model underwent three major changes:

The models undergo castings for several different fashion shows.

In 1967 the model underwent some revisions and a name change to B25.

All professional models should undergo medicals every 6 months.

The 1966 models underwent a major styling change.

The above models underwent further development in Germany in the 1980s.

The model underwent a series of software updates from its inception in the late 1980s.