[lambdaxyzw]

Weird premise. I search for random hex literally all the time (checking hashes and guessing algorithms as a part of my reverse engineering work) and I don't remember car dealers coming up especially often. I suspect it's just the author who - because of their location or the previous search history - gets more targetted car dealership ads.

[joe_the_user]

But the results here aren't ads - at least they appear to be regular search results.