Tesla Model 3 doesn't have a key – and seven other things we learned

Elon Musk's new mass market-aimed electric car has no directly visible speedometer, comes in two battery versions and isn't a bad option for a sleep

Elon Musk revealed Tesla's Model 3 is unlocked by a smartphone and doesn't have a traditional key or fob among a host of other details at the delivery event for the first 30 mass-market electric cars over the weekend.

As the Model 3 enters what Musk called "six months of manufacturing hell" as Tesla ramps up production to meet the more than 500,000 pre-orders, one of the most surprising titbits is that there is no traditional key to open and start Tesla's mass-market electric car hope.