We have ads? Never knew ads popped up in that spot.
I am going to agree with Kardain Google and their Terms & Conditions are nothing compared to others. At this point so many people are wired into these companies, they could probably track when you have a BM based on when you play Angry Birds, or surf for a certain period of time. Nothing scary, (well sort of) this has been done by advertising corporations for a long time, not to mention major retailers. There was an article a while back that claimed target could tell when women are pregnant based on what they by over a certain time period, next step coupons for such items.
I look at it like this, I would worry more about your ISP and the information they retain than what Google sees. If anything it makes for a less painful TV.com experience without massive amounts of random adds that have nothing to do with our vehicle, let alone cars in general.