China's quota threat charges up electric car market

China's electric-car market is already the world's biggest, but a government proposal to introduce "new energy" vehicle quotas for automakers is further charging it up.With the threat of the measure looming, major manufacturers at the annual auto show in Shanghai are announcing big plans to boost their electric vehicle (EV) offerings in China.Volvo has confirmed it will introduce its first 100-percent electric car in China in 2019, while Ford will market its first hybrid vehicle in early 2018 an