It seems that
within a year at least two countries' traffic authorities have done variations on the same theme in their anti-speeding campaigns: First, the Danes took their tops off in favor of keeping within the limits (let's call this positive enforcement) and now the Aussies have followed suit with a theme that is perhaps more appropriate in terms of their sociocultural climate. I'm not sure if Vatican, also having embarked on making roads civilized (and apparently chaste and pious, too), would approve. If you're old enough to drive, you're old enough to watch these ads ...
First, the Australian one:
BBC story
Campaign Video
And then the Danish Speed Bandits:
BBC story
Campaign Video
Perhaps these will work for a certain group. Funny as these are, though, I think much of the psychology of taking risks and experiencing speed can't be addressed by parallels drawn to reproductive instincts. I suppose very few men, even young men, are dumb enough to not to feel a bit underestimated by this approach. Great in grabbing attention perhaps, but changing behavior ... ? Thus my subject headline.