I actually don't think advertising affects my decision at all, much like the sales person at the dealer. I only care about the product and how it feels when I drive it. That being said vast majority of people don't test drive everything under the sun in order to find what they are looking for. Hell some don't even read vehicle reviews. So I understand that marketing is important to get the customer in the door and get them to try your vehicle. I tend to enjoy car commercials that are rather humorous. People keep talking about catch phrases and I have to say there aren't many I can say off the top of my head, Zoom Zoom of course, Confidence in Motion is Subaru I think, Ultimate Driving Machine for BMW, and that's about all I can come up with.