Eiji Kubo serves as Sidewinder's Chief Mechanic and is basically the guy who actually understands what's going on under the hood. He's got serious knowledge when it comes to car performance, tuning, and race strategy—the kind of person who can watch a car and immediately spot what's working and what isn't. Fans often note how sharp his predictions are; during Project D's races against Team 246, he called things with an almost uncomfortable level of accuracy. The manga makes it clear that Project D trusted him enough to break down their weaknesses, which says a lot about how respected he is in that world.
Content compiled by AnimeList.moe from publicly available sources.
