In auto manufacturing today, most companies start with a platform, sometimes referred to as a tool kit. There are certain hard points that have to be standardized between various models in order to make them in large numbers profitably. Things like where the front and rear wheels get attached to the chassis, where the engine and transmission mounting points are, and where the vents for the climate control system will be located.
The company will meet the needs of all other models by using one of the other BEV platforms it is working on, known as STLA Small, STLA Large, and STLA Frame. It seems a safe bet that last one is meant for“STLA Medium is intended to be manufactured in many countries: France, Italy, Germany and then in North America in different locations,” CEOCar and Driver
The higher voltage creates a lower current, which reduces heat. That in turn reduces power demands from battery cooling systems. Lower current also means charging cables can be thinner and less cumbersome, while some electrical components in the car can also be thinner and smaller, making the car lighter and more efficient.