what i see in other countries like malaysia and taiwan, their
chassi do come from different origins and is reflected in the VIN.
any examples, hopefully locally, where the VIN does not match
the place of production? 
The Volvo B10TLs (excluding 9888Y and 9810X) were made in
Poland, but have Swedish VIN.
The OC500LEs were supposedingly (at least true for Perth ones)
made in Spain, but have German VIN.
But I still believe that the Citaro production remains in
Mannheim.