Auto/Car SEM papers, research or trends

looking for examples of auto companies using SEM

[GerBot]

Hi Guys,
I'm looking for research, stats or examples of large auto companies or sites using PPC/SEM to promote their sites, products or brands.

Stats, published examples, trends, public announcements etc

Thanks

[johnser]

Search Google (UK) for "Toyota" - see any ads?
Now search for any other make? How many ads?

Toyota see the value in SEM & as such are not allowing anyone bid on their name. Read into that what you will...