 Their own company called GV-Garagem Vitoria started quickly and a several prototypes were built soon in early 1975 all with different running gear fitted.The PORTARO vehicles were all built in a motorvehicle assembly plant that was owned by a company called "Sociedade Electro-Mecanica de Automoveis Limitada" or SEMAL for short, which was based at Parede, near Oeiras.Here is where all PORTARO vehicles were assembled from the 1970s until the 1980s.