Chalk-Head

The Chalk-Head is Sonic "Boom Boom" Renaldi's T-180 from the Speed Racer film and tie-in Videogame.

Background
It is featured at the Grand Prix race, being one of the cars aiming to take Speed Racer out.

Grand Prix
The car tries to stop Speed right at the start, but ends up crashing with another car instead. It survives along with the Infernal Oil T-180, and the vehicle can be seen after the Skullmelter, the No. 55 T-180, the Firebatter T-180 and the white and red T-180 are destroyed. Near the end of the race, Speed Racer passes the Chalk-Head, who was in semi-last place (not counting the DNF racers).

Videogame
The Chalk-Head appears in the Console and Nintendo DS versions of the tie-in Videogame as Sonic "Boom Boom" Renaldi's T-180.

Console
In the console versions, the Chalk-Head is unlocked upon beating Championship 2 of Class 2 (World Endurance Round 1). The car has average stats overall with focus on speed and lacking handling.

DS
In the DS version, the Chalk-Head is unlocked upon amassing 30.000 fans, being the first unlockable car. Its style is described as "All-Around".

Trivia

 * The car's color scheme is coated in math and science equations, thus why it’s named Chalk-Head.
 * Chalk-Head and Thistle are both numbered "33".
 * In the files from the Videogame, this vehicle is referred to as "Hyperion".
 * Chalk-Head has the same body shape as the Janus Automakers T-180 and the Zoomishi.
 * Uniron, which Rex Racer had raced for before his death in the Casa Cristo 5000, was one of the Chalk-Head's sponsors.
 * In addition to Gödelian Autonomics, the sponsors Uniron, Kawarimono, Pola Cola, Aceite Infernal, Asfalt Direkt, Kibitzer Consulting Co. and Omiy Beste can be seen on the car.