Hong Kong (China) 2010: Toyota and Mercedes dominate
Toyota leads the car sales in Hong Kong with over 2,400 registrations during the first 6 months of 2010, a 63% increase over 2009. Models that seem to sell well include the Noah (at one stage declared the best-selling Toyota passenger car in HK), Wish, Camry (#1 in 2006 when I last got an official sales ranking) and Previa.
Mercedes-Benz is the #2 car manufacturer in Hong Kong with 3,815 registrations over the first 10 months of 2010, growing by 45% over 2009. The Mercedes E Class sold 1,673 units during the period (+76%), which should definitely allow it a place on the models ranking podium.
Sources below