Tags import tax of cars Car imports reach 5-year high Tuesday, Nov 24, 2015 Viet Nam imported 7,600 cars comprising nine seats or less in October 2015, posting an increase of 115 per cent as compared to September. Used-car taxes to rise up to $800 Wednesday, May 08, 2013 The import tax on used cars of nine seats or more will increase on June 20, according to the Prime Minister''s Decision 24/2013/QD-TTg.