Green Energy

The Petrobras-1 is Mariana Zanja's T-180. In Speed Racer, the car appeared as one of the competitors of the Grand Prix. As a movie partnership between the Wachowskis and Petrobras, the Brazilian oil company determined that they wanted a car with the company's colors and logo to be featured in the movie.

Background
The Petrobras-1 T-180 runs a great race. Despite starting in the midfield, it stays with the leaders throughout. It is first seen on the Drift Tower with the race leaders at 4th place. Things only get better for it as by the time it passed the Tokyo Turn, it is already occupying 3rd. It continues to chase down the two battling leaders throughout the Drift Towers, and when they both wipe themselves out it takes 1st. However, it doesn’t stay in first for long as it is later passed by Kakkoi Teppodama and Grey Ghost.

It is last seen being passed on the Final Lap right before the final stretch. It was in 3rd when it got passed, but since the two cars in front of it wrecked before the end, it usurped 2nd place overall.

Videogame
The Petrobras-1 appears in the Console and Nintendo DS versions of the tie-in Videogame as Mariana Zanja's T-180.

Console
In the Wii version, the Petrobras-1 is unlocked upon beating Championship 5 of Class 3 (Fire & Ice Invitational), while in the PS2 version, it is unlocked upon beating Championship 4 of the same Class (Royalton Rewind Classic), together with Chit Ticket. The car has good acceleration and handling, but lacks speed and strength.

DS
In the DS version, the Petrobras-1 is unlocked upon amassing 500,000 fans.

Trivia

 * The car was physically built by Petrobras with help from Williams as a marketing stunt to promote the film in Brazil. Being built on a Formula Ford chassis with a Cosworth V6 installed on the car. The car was first shown at the 2008 Brazilian Stock Car Championship's season opener at Interlagos, home of the Formula 1 Brazilian GP.
 * The "LUBRAX" sponsor in the front is a reference to Lubrax, Petrobras' brand of motor oil.
 * In the files from the Videogame, this vehicle is referred to as "Siren".
 * Petrobras-1 has the same body shape as:
 * Taejo Togokahn's Hangul.
 * The Generic T-180 D.