Sometimes robits are created for destruction. Sometimes they are made to better the world. In this case, Black Spider Car Lady was made to have 8 arms and grab balls.

She was made with bloodbowl in mind, by a secret organization funded by Lord Solarshouts' earnings when selling merch. The problem they had when they made her was that they made her too sexy that even their own players wanted a piece of that hideous spider ass. You know the one.... with the weird appendages that spew out webbing and stuff. It's gross.