ICCT, China.

Research tip: A study of the International Council on Clean Transportation (ICCT) concludes that OEMs can achieve the CO2 goals for 2025, even if the share of diesel cars continues to decline dramatically. All that is necessary in order to do so, are more electric and hybrid cars on the road.
theicct.org, theicct.org (study, pdf)

Reading tip: Speaking of more EVs, it looks like Chinese automakers could produce 49 of all 103 EV models scheduled to launch by 2020 globally. On top, two-thirds of the world’s manufacturing capacity for lithium-ion batteries will be in China by 2021, a forecast of U.S. consulting firm AlixPartners suggests.
reuters.com