The campaign features young women, an elderly woman and other young men not in the driver's seat wiggling their little fingers in a gesture that implies the speeder is poorly endowed before the appearance of the campaign's slogan: "Speeding, no one thinks big of you," The Times of London reported Tuesday.

The provocative advertisement is the work of the New South Wales Roads and Traffic Authority.

"To me the gesture says, 'Speeding -- no one thinks big of you,'" said John Whelan, the authority's spokesman. "It will cause people who are speeding to think twice about the image they are creating."

The TV spot represents a departure from campaigns that featured gruesome images of auto crashes that resulted in wrecked cars and mangled bodies. Whelan said those types of TV spots are no longer effective because young drivers have been desensitized by images in video games and horror films.