When Milkette was... born, she had a real tough time coming to terms with her identity. Like a teenager stuck in a 20-year-old's outrageously curvy body, she went through the strangest mid-life crises anyone could have when they were only actually a few months old.
To set herself apart from Milkie, she explored several possibilities that would mark her as being different from him. The most basic form of this was her hobbies. If she could just be into things that her genetic original wasn't... that was a step in the right direction, right?
Turns out racing wasn't for her. With a one Mr. Helfrich's help, she got all set up to try her hand at cars. Just like Milkie, she hated going too fast, and the high-speeds made her nervous. That was bad enough without including the fact that her legs weren't long enough to reach the pedals... and her tits would mash up against the wheel if she tried to move the seat close enough for her to drive.
... She kept the outfit though. There was no prying that sexy suit out of her hands. <3