The story
The company was established in the 1940s as a subsidiary of Tranvías de Barcelona. Its main purpose was to adapt old buses for use as trolleybuses to avoid the fuel shortages after the Spanish Civil War. The companys name was shortened to MT. It was located on Luchana Street, Barcelona. In the 1950s it began to manufacture scooters and three wheel motor bikes. Microcar production occurred in 1957.
From Wikipedia’s article on Maquinaria y Elementos de Transporte, shared under CC BY-SA 4.0.4