Ayumi Kan street cars

The KaraSugoi street cars are one of the various background vehicles featured in the Casa Cristo 5000 race from the Speed Racer film.

Technical Details
As mentioned in the Supercharged featurette, KaraSugoi is a company responsible for making the 26-cylinder hotblock used in Grey Ghost's race car, the Fumée, meaning it's very likely that these cars also use it.

Background
Two KaraSugoi cars can be seen at the start of the Casa Cristo race: One that has a yellow and blue livery and the other is pink. It's unknown if they make it past the first part as they don't appear in subsequent scenes.

Trivia

 * There exists concept art for a T-180 version of a KaraSugoi car, although it likely does not appear in the film itself.
 * This car has the same body shape as the Calomay Fiber cars.
 * It also has the same body shape as an alternate design for the Hydra-Cell street cars seen in the UB Funkeys game.