Schumacher Racing Products based in Northampton/Great Britain was one of the early technical innovators in electric rc car design. Cecil Schumacher as founder of this brand was inventing the ball differential what still is used until today. He always was a genius designer with different ideas than others, working for Cosworth before.
Most people today just know the Schumacher offroad and touring cars but their first cars were 1/12th scale. Today Cecil´s son Robin is heading the Schumacher company.