Audi said sales jumped 15 percent in December to 150,000 luxury cars and sport-utility vehicles on double-digit gains in the United States and China. Deliveries of Volkswagen's flagship premium division set a new record last year, rising 11 percent to 1.74 million cars, with China accounting for a third of total volume, the Ingolstadt-based carmaker said. Audi maintained second place in the global luxury sales race behind German rival BMW, beating Daimler's Mercedes-Benz division which in 2014 delivered a record 1.65 million cars. (Reuters)