Hours after Uber began offering people in San Francisco rides in self-driving cars Wednesday, California regulators told the ride-hailing company to stop and said it could face legal action if it does not get a state permit.Uber started a public...

Ride-hailing service Lyft, the underdog rival to Uber, is getting rid of its iconic pink moustache logo and replacing it with something more useful beacons.The light-up beacons, which Lyft calls amps, will be on the dashboard of Lyft drivers'...

The internal-combustion car was the dominant form of personal transportation in the U.S. for most of the 20th century, and that is still the case today.But electric cars are gaining momentum, and they could lead to even more drastic changes...