In many ways, these have been tough days for Tesla. Falling sales. Squeezed profit margins. Proposed changes in US government policy that could cost the company billions.

For nearly nine years, Elon Musk has promised Tesla vehicles had the hardware needed to support a self-driving car. This week, he made his latest admission that many are not. Musk said on a ...

The challenge will open a new front in Brussels' conflict with Elon Musk, Tesla CEO and ally of U.S. President Donald Trump.