In 1936 the German carmaker Tempo (Hamburg) developed a cross-country vehicle with an innovative four-wheel-drive consisting of two separate engines, one on the front and one on the rear axle. When the car was driven on normal streets one of the engines could be shut down. The central element of the body was a flexible tubular frame which allowed the front axle and the front engine to swing back and forth. Due to the all-wheel drive, the all-wheel steering and the oscillating front axle the vehicle could overcome almost all obstacles even in rough territory.