Seres, a Chinese electric SUV brand, has invented a waste disposal unit that slides under the passenger seat so that passengers can go to the lavatory on the move.

Chinese carmaker Seres has secured a patent for an "in-vehicle toilet" that slides under a seat and enables full onboard lavatory access without stopping the vehicle.

Seres' plans show how stiff competition in the EV space is putting pressure on carmakers to innovate.

Seres' plans show how stiff competition in the EV space is putting pressure on carmakers to innovate.

Seres' plans show how stiff competition in the EV space is putting pressure on carmakers to innovate.