Yes. The Osorio became property of the Brazilian Army, as payment for the investment made in the design of that tank. If they wanted, they could put it into production, but there is no money for that. The army is concentrating its industrial efforts, to produce spare parts for the Leopard 1 tanks they bought, to upgrade them in the same way it was done with the M-41, but avoiding the mistakes made at that time.
The idea then, was to take advantage of the experience with the modifications made to the M-41 by the Bernardini company, to design a larger and more advanced version of that tank, which resulted in the construction of the MB-3 Tamoyo prototype. From then on, the Tamoyo would be developed further, advancing one step at a time, until it reached the level of tanks made by more developed countries.
However, the owner of Engesa being a better sales man, and even more important, having better political contacts in the government at the time, than the owner of Bernardini, convinced the army's top brass to invest in the Osório, which frankly speaking, we would not have technology to manufacture en masse anyway in the 80s. It was later revealed that the owner of Engesa influenced his contacts in the army, to convince Bernardini to build the Tamoyo prototypes, to participate in a fair competition against the Osório, which they never had the intention to do, and thus, bankrupt his rival company.
In the end, Engesa failed to sell the Osório to Saudi Arabia and use the money to supply it to the Brazilian army and the entire project fell apart.
