"Chinese electric vehicles have become increasingly packed with unconventional features, like built-in massage seats, karaoke systems and a fridge, to stand out in a highly competitive market.
The patent filing shows Seres’ plans for an onboard toilet that slides out from the bottom of a passenger’s seat with a push or through voice-activated commands."
Seres, based in the south-west city of Chongqing, has not announced any cars that have toilets and it is uncertain if any will be made.