Thistle

The Thistle is Rosey Blaze's T-180. She and Slick Wheels White are part of the Three Roses racing team. The car can be seen briefly in the Fuji Helexicon race section of the Speed Racer film. An orange and green version can be seen in the Grand Prix.

The Thistle is playable in Speed Racer The Videogame.

Fuji Helexicon
The Three Roses car first appears at Fuji mainly in the background for most of the race. The car is mostly in the mid to back of the pack except for when Speed challenges Grey Ghost. Grey Ghost spins him out just in time for the Three Roses driver, Slick, to spear hook him. The reason he did was most likely because he was bribed by Royalton to make sure Speed crashes. His fate afterwards is unknown, but he survived the crash thanks to his Kwik-Save device.

Grand Prix
The Three Roses car also appears at the Grand Prix, colored orange with green detailing. It shows up few a times in the prix. It starts the race from the very back row but catches up to the mid field where it remains for most the race. It’s seen being overtaken by Speed Racer on the moguls. It’s seen throughout the race since then, and is finally seen being passed by Speed Racer on the final lap while on the Drift Tower.

Trivia

 * Thistle's body design is the same as two other known cars, the Iodyde and the Redliner / Scuttler.
 * Thistle and Chalk-Head are both numbered "33".
 * It is flower themed, specifically rose themed.
 * In the files from the Videogame, this car is referred to as "Thorn 3000".