The car subholding of Eurohold Bulgaria - Auto Union AD has sold 226 new cars in March 2011, a 33% MoM increase, Eurohold Bulgaria announced. New car sales of Auto Union grew in line with the market in Bulgaria, which rose by 34% MoM in March with 1 816 cars sold. Thus, Eurohold's subsidiary preserved its market share at Feb’11 level of 12.5%.