General Motors

Toyota has also backed Uber, Japan Taxi and Didi Chuxing, as car makers race to keep up with automotive technology.

SoftBank invests in GM Cruise to compete with Google's Waymo in self-driving car race; Tell us who are your picks for Rising Stars of Private Equity.

GM intends to be the first automaker to bring an autonomous taxi service to public roads next year, positioning the company to compete alongside Waymo, the unit of Google parent Alphabet.