German Carmaker Volkswagen has posted its first drop in VW brand sales in 11 years as the company continues to cope with its emissions scandal. Sales of VW brand cars fell 4.8 per cent in 2015 to 5.82 million cars from 6.12 million a year earlier. Falling demand in China and US added to the losses as orders fell in December. VW has promised it will have a fix in the coming weeks for the millions of US cars with defeat devices that disguised emission levels in diesel cars. Sales began declining after the scandal came to light in September. Deliveries fell 5.3 per cent in October, 2.4 per cent in November and 7.9 per cent in December compared with those months the previous year. The underperformance at VW's largest division by sales and revenue pulled down annual group deliveries by 2 per cent to 9.93 million cars, the first drop in 13 years.However, Volkswagen Chief Executive Herbert Diess said he was "optimistic" the company would find a solution soon.