Daimler and Nvidia team up to close tech gap to Tesla

FRANKFURT (Reuters) - Having pulled ahead in the race to develop a software-based vehicle operating system, U.S. electric car pioneer Tesla faces a new challenge from an alliance of German luxury carmaker Daimler and U.S. computer graphics specialist Nvidia.Daimler and Nvidia unveiled a deal on Tuesday to develop and equip the German company's Mercedes-Benz cars with a next-generation chip and software platform that could eventually be used to help vehicles drive by themselves. The move is a..