1. 3 out of 4 online consumers looking for an automobile dealer use a search engine to find that dealer (Insight Express Study for Google, 2003)
2. More that 50% of automotive searches on the web happen on the google ad network (StatMarket, 2004)
3. Local commercial searches - those seeking merchants “near my home or work” represent 25.1% of all searches preformed by online shoppers (Kelsey Group, 2003)
4. FordDirect’s costg per lead on google is less that $5 per lead (FordDirect Case Study, 2003)

Here’s the pdf from google “3 reasons why using google pays off for automobile dealers”