The real interesting fact of the Semi is that Tesla managed to install 1MWh of battery in the truck, while other electric truck makers reach their structural limit at 500 kWh with their conventional design. They just dont have more room to install more batteries.
The genius of the design of the Tesla Semi is the central driver position. That is the same truck can be used in any country in the world as it does not need to be changed for left hand or right hand drive countries. So just one manufacturing line. Another process removed. Gotta admire the brain power at the disposal of Tesla.