I have extended country.zip to have a second subdivision (subsubdivision). In the case of Spain it make sense and the data is there to be imported with the script without issues.
Example (subdivision: Catalunya, subsubdivision: Barcelona).
I also added coordinates (latitude, longitude and accuracy). Again the data was there to be imported.
I do not know if the community would like to have this data available officially.
I do not know if it make sense for other countries.
The initial import with the script (minor modifications) is easy, update on existing data may not be that easy.