Tesla

The electric automaker plans to start building cars outside Berlin this summer, threatening to upend Germany's traditional combustion engine car culture. It's Tesla's first European production site.

If the electric carmaker enters the S&P 500 index, as is widely expected, Wall Street's most controversial stock would start appearing in even the most mainstream investment accounts.

The driver was distracted by his phone as his car steered itself toward a barrier, and Tesla should have done more to prevent this "foreseeable misuse of technology," federal investigators said.

For years, Elon Musk skeptics have shorted Tesla stock, confident the electric carmaker was on the brink of disaster. Instead, share value has skyrocketed, costing short sellers billions.

The all-electric truck's unique design threw some Tesla fans for a loop. And the event went off track when a demonstration meant to show off the truck's "armor glass" left the windows smashed.