Begun as Google Chauffeur, now spun out as Waymo, this was the first and is still almost universally viewd as the preeminent team in the field. They operate the limitd Waymo One service in the Phoenix area with live customers.
Chauffeur was formed at Google by Larry Page, from winners of the DARPA Grand Challenge races and the Google Streetview team among others. In late 2009, it came out of stealth after driving 100,000 miles on public roads
The current vehicle, a custom modified Chrysler Pacifica minivan has an array of Waymo's own custom LIDARs, along with an array of cameras and radars. On the roof is a dome including Waymo's long-range GBR LIDAR and a camera array. On the sides are shorter range LIDARs to see areas not visible from the dome.
Waymo has had 5 different vehicles: