This bubble map shows the global distribution of passenger cars in use in 2000 as a percentage of the top market (USA - 212,706,400).
This map is consistent with incomplete set of data too as long as the top producer is known. It resolves the accessibility issues faced by colour-coded maps that may not be properly rendered in old computer screens.
Data was extracted on 16th June 2007. Source - http://unstats.un.org/unsd/cdb/cdb_source_xrxx.asp?source_code=6
Based on Image:BlankMap-World.png