Australia 2009: Commodore still ahead but with lowest volume, Mazda3 #1 in January, the Chinese arrive
* Click on the title for the All-models Top 280 and every monthly Top 50! * The Australian market is down 7% in 2009 to 937,328 registrations, and the Holden Commodore is the best selling car in the country for the 14th year in a row, albeit down 13% to…