• The documents obtained by Business Insider include a walk-through of the "Development Platform Specific Training" as well as details about an autonomous-vehicle system called the "Apple Automated System." 
• Apple's car is outfitted with consumer video game gear such as a Logitech steering wheel and pedals to actuate drive by wire. 
• Pressing the brake pedal or grabbing the steering wheel in Apple's test vehicles will disengage the electronic-driving mode, but drivers can accelerate without overriding the "drive by wire" mode.

The start of mass production is a huge milestone in Tesla’s quest to electrify transportation, and it brings to America a manufacturing industry—battery cells—that’s long been dominated by China, Japan, and South Korea. More than 2,900 people are already working at the 4.9 million square-foot facility, and another 4,000 jobs (including temporary construction work) will be added this year through the partnership between Tesla and Panasonic.

By 2018, the Gigafactory, which is less than a third complete, will double the world’s production capacity for lithium-ion batteries