Cars are getting better at driving themselves, but you still can't sit back and nap

Waymo, a unit of Google parent Alphabet Inc., is one of several companies testing driverless vehicles in the U.S. Automakers are also developing self-driving technology, but it still requires human drivers to take over when required. Waymo, a unit of Google parent Alphabet Inc., is one of several companies testing driverless vehicles in the U.S. Automakers are also developing self-driving technology, but it still requires human drivers to take over when required. If you're taking a lot of road trips this holiday season, maybe you've wished your car could just drive itself to Grandma's house. The auto industry has been working on autonomous driving for years. And companies like Waymo and Cruise are testing fully autonomous driving -- in some cities, you can already hop in a driverless taxi.