Uber, Alphabet autonomous car rivalry heats up

The race by companies to develop autonomous cars is making rivals out of old friends as is evident from the exit of Alphabet’s senior executive David Drummond from the board of Uber Technologies.Alphabet is an investor in Uber through its venture capital arm GV, and from all appearances will continue to stay so. But it had become increasingly evident that the ride-hailing company’s efforts to build self-driving cars would put it in conflict with the aims of the Google Self-Driving Ca