The poor people that can't figure out that the BMW web site is www.bmw.com. To be honest if they can't figure that one out, then they can't be bright enough to afford a new BMW (can you guess the ones for Holden and Ford).

That's awfully elitist. Novice users don't really distinguish between an address bar and a search box. I've watched users type in "google" into their MSN homepage to get to Google, and then conduct their search. From Hitwise:

Top Queries: Navigational terms rule on the search engines, with top queries often those for sites such as eBay or Mapquest. Top term on Yahoo and MSN? The name of their chief rival -- Google! Ask is notable for not having its top list be dominated by navigational queries.