Oh my, seems there's more to the story that caffeinegoddess posted Anti-SUV ads make it to Chevy's website [1] last week, seems there's another competition going on - the Alaska Tahoe Alliance anti-chevy competition [2] has hijacked the game and want you to create as many anti-Chevy ads as possible using Chevy's own ad creator. Ouch!
Talk about biting back: Chevy Apprentice - How Consumer Generated Content Can Bite Back [3]. ;)
Links:
[1] http://ad-rag.com/129186.php
[2] http://www.alaskaaction.net/tahoe/
[3] http://customersonfire.com/archive/chevy-apprentice-how-consumer-generated-content-can-bite-back/
[4] http://technorati.com/tag/viral or youtube