1940. The gasifier and trolleybus
The Spanish landscape resulted from the dire economic situation that dragged the war, but also of the full external dependence in the provision of motor vehicles and oil. World first War, and restrictions of Potsdam to the Spanish State, then came to complicate it even more. And given the lack of imagination means hand is laid. the gasifier, a device that allowed coal or wood burning gas producing powering the internal combustion engine like gasoline, but with less power appears. The difficulty was that in addition to the gasifier unit, the cars were hauling coal or firewood consumed it. In public transportation make their appearance trolleybuses, buses powered by overhead cable with electric motors. The first was launched in Bilbao.