Three Am Law 100 firms are advising on a $1.6 billion investment into Chinese autos e-commerce company Bitauto Holdings Ltd. by JD.com Inc. and Tencent Holdings Ltd.

JD.com, China’s second-largest online shopping site after Alibaba Group Holding Ltd.’s Taobao Marketplace, and internet giant Tencent, maker of the popular WeChat texting app, are using a combination of cash and resources to purchase a total of 28.3 percent of the company’s shares.