Episode 21 of the anime digresses into one big racing equivalent of a Cat Fight, complete with No Fair Cheating in the form of Lisa calling for her crew's Humongous Mecha and Lucy performing a Macross Missile Massacre. The best example comes from Jody, who tricks out her White Cat with a positron cannon and nonchalantly opens fire on the other female racers. Even Black Shadow is at a loss of words. It all ends with all the named ladies either eliminated from falling off the track or disqualified for bringing weaponry to the race, and the Announcer cancelling the race and urging the audience to flee.
Some of the bonus endings in GX qualify.
Mr. Zero shaking in his boots while interviewing evil/intimidating racers.