Chinese car manufacturer, Seres, has been granted a patent for an "in-vehicle toilet" that can be accessed mid-trip and will be controlled by a button or via voice-activated commands. The feature is intended to satisfy users' needs during long road trips, while camping or staying in the car. The toilet-to-go also comes with a rotating heating element that evaporates urine and dries excrement. Seres has not yet announced an official release of vehicles with the onboard bathroom.