Three carbon-fiber-wrapped motors give the Tesla Semi three times the power of conventional diesel semi trucks while using only 1.7 kWh/mi (1.1 kW/km) of energy every mile. While the other two motors supply extra power for acceleration and up hills, one motor runs continually at maximum efficiency.

In the cab, the driver’s seat is in the middle. An adult is able to stand up due to the ceiling. There are no additional instrument panels; instead, touchscreen screens are mounted on each side of the steering wheel.

It has the same array of cameras as Tesla’s passenger cars. According to Tesla, its safety system can stop jackknifing.

Compared to Tesla’s conventional 400 volt system, the Tesla Semi features a 1,000 volt power train and charging system, but Tesla also plans to expand this capability to 1,500 volts. Charging will be supported at a new generation of Tesla vehicle charging infrastructure called the Tesla Megacharger.