Domestic passenger vehicle wholesales declined by about 2 per cent year-on-year in August as companies curtailed dispatches to reduce inventory at dealers amid a drop in demand.According to data issued by the industry body Society of Indian Automobile Manufacturers (SIAM), the total passenger vehicle dispatches in the domestic market stood at 352,921 units last month compared to 359,228 vehicles in August 2023, a dip of 1.8 per cent.