Cruise (YC 14) is just scary. They still have that advertising video online [2] that totally oversells what they can do. All they have is lane-keeping and smart cruise control, like the other entry level systems. It's automatic driving from the "move fast and break things" crowd; they're from web and app startups.
Google is being cautious and testing heavily. But they're spending enough money to test fast, with many cars on the test track. That's the auto industry way of doing things. It takes money, but not decades, to get it right.
The CEO of Volvo has the liability issue right - when in autodrive, the manufacturer is responsible. If you can't accept that, you shouldn't be doing this.
[1] http://www.cnet.com/roadshow/news/tesla-autopilot-fail-video... [2] http://www.getcruise.com/