TMC M1
Tarso Marques tested his “batmóvel” this week around Autódromo Internacional de Curitiba. He personally tested his car, which received numerous updates, and light was shed on many elements. For example, this prototype is built around a carbon monocoque chassis and is equipped with biturbo V6 engine with units of the Brazilian production. The aerodynamic body kit has also changed significantly: the diffuser has increased (compared to other prototypes), and the DRS system is mounted on the rear wing and many elements have also changed.
So, Brazilian prototypes are progressing. Thanks for observations to the author of this thread.