Vespavenger

Vespavenger, or Vespa Avenger, is the name of a psychopathic hipster girl who, in her own words, "right(s) wrongs done to the hearts of innocent women. I am vengeance. I am the night."
Her website (www.vespavenger.com) has the tagline, "Where Payback Really Is A Bitch.™" Faye commented that she was pure "B for Bitchdetta!"
She uses a Transformer-like Combat Robot in the shape of a Vespa to help in her avenging. The robot has a laser that can disintegrate items, like a stop sign or a broom.
Faye, Dora and Marten teamed up to defeat her (with a little help from Pintsize).
She was taken away by Secret Agent Turing and charged with Illegal Possession of a Combat Robot. However, instead of incarceration, she was offered a gig in Research and Development in order to "keep a close eyes on her, ah, extracurricular activities."
Though Vespavenger's first appearance was in strip 720, where she mistakenly attacks Steve, in strip 685 Sven mentions being run over by "some drunk hipster chick on a Vespa".