Yeah, and aside from the fact that it makes no sense as work attire, it also just doesn't suit her personality. She's not overtly sexual or even flirty. She's a completely average girl who is your friendly mechanic, but a) she is wearing the second most sexual outfit in the game and b) even for a video game model, her boobs somehow look fake. It's gratuitous.
Kind of vague, but might be a general spoiler, so I'm hiding it.
There are few notable female characters and none of them are relevant for very long, but nearly all of them were designed as ogling material...it's frustrating and bizarre.