[2] Since the opening of Line A in 1913, it had used the same La Brugeoise et Nicaise et Delcuve rolling stock (along with a small number of UEC Preston cars at one point).

One such attempt was the Alstom Metropolis cars purchased at the turn of the 21st century, however these ultimately ended up serving on Line D.[4] Before then, an attempt at creating a single, standardised rolling stock model for the entire network had been made in the 1980s in the form of the Fiat-Materfer cars produced in Argentina, which had also been designed to easily switch from 1500 V to 1100 V with Line A in mind.

[7] However, this was still short of the 120 La Brugeoise cars operating on the line at that point and the addition of Puán and Carabobo stations in 2008 meant that the rolling stock was already stretched to full capacity.

[8] The cars arrived in 2013 and the line was temporarily closed down at the start of that year in order to convert the voltage to 1500 V for their integration.

They were praised for their quiet operating noise (the lowest in the network) and for their inclusion of newer features such as air conditioning, automated announcements and good lighting which were lacking in the 100-year-old La Brugeoise cars.