For people (like me) who don't appreciate the advantages of 800v vs 400v, here's an article about why this is useful:

https://eandt.theiet.org/content/articles/2021/02/800v-syste...

> Such systems enable greatly reduced charging times, as long as they are using fast chargers capable of working at up to 270kW.

> It also allows for weight reduction, as less copper is needed in the electric system. Electric motors are much simpler than combustion engines in construction and at their core they have a rotor, which is driven by a changing magnetic field. To induce this field, electrical systems often use up to four times the amount of copper found in combustion engines; higher voltages reduces the need for large amounts of copper. This permits smaller motors, freeing space in the vehicle for batteries.