Interesting. Here's a motorcycle safety ad featuring the current Secretary of the Departement of Transportation (DOT), Mary Peters (who is also a biker).
Not only is she talking about motorcycle safety, but she's recalling a motorcycle accident she had herself. Quite effective and nice touch. It's not a hard hitting ad, more soft, but it shows the person who's ultimately responsible for road safety, that she too can have accidents and learn from them. US DOT Safety Ad With Mary Peters (31 seconds)