Crispin recently released new spots for the Volkswagen Passat which mocks others who buy German made cars, claiming that they only buy them because "daddy never loved me" or a myriad of other ego reasons. And of course in classic Crispin style, there's a microsite [1] too. You can rate the ego emissions of things like lip gloss and add your own items to the list for others to rate. Superadgrunts, check out the ads inside.
Links:
[1] http://www.egoindex.com
[2] http://www.egoindex.com
[3] http://commercial-archive.com/129781.php
[4] http://commercial-archive.com/129780.php
[5] http://commercial-archive.com/129779.php
[6] http://commercial-archive.com/129778.php
[7] http://technorati.com/tag/viral or youtube