Nissan and a Chinese partner announced plans Monday to develop 20 electric vehicles as part of a $10 billion, five-year investment program, adding to efforts by global automakers to create commercially competitive electrics for the biggest auto market.Niss

The biggest global auto show of the year showcases China's ambitions to become a leader in electric cars and the industry's multibillion-dollar scramble to roll out models that appeal to price-conscious but demanding Chinese drivers.Auto China 2018, which