Waymo Is Millions Of Miles Ahead In Robot Car Tests; Does It Need A Billion More?

How many test miles is enough to build a better driver? Waymo has 5 million on-road autonomous test miles and 5 billion simulated miles, and the number keeps rising. Sometime this year Waymo, Alphabet Inc.'s prized driverless car bet, starts a first of its kind revenue-generating robo-taxi service in Phoenix. Ahead of that the unit is maintaining a steady cadence of news underscoring how mature the former Google Self-Driving Car project is – including how big a lead it has over rivals in test miles. Waymo this week said its test fleet has logged 5 million miles driving in autonomous mode on public roads.