Ok. I have seen the commercial several times, and it has really stuck with me. I think the point of the commercial is to suggest that a normal, mundane thing (e.g. a family-friendly compact SUV, what people used to call a minivan) has a secret inner life, that the outside appearance doesn't tell the whole story at first glance. The fantasy-nature and novelty of the concept grabs your attention, and you watch the fun adventures the dolls are having. Repeated shots of the car associate this with the product. It makes you wonder what you're doing wrong with your life, if your car doesn't instill this kind of excitement and adventure -- which are classic themes used to market cars.
http://www.kia.com/#/sorento/hop-in?sorentoMinisitePage=video-joy-ride
Transcripts: Open on a sunny city street. All is quiet. Suddenly, a Sorento accelerates and comes bounding over a hill in slow motion. We see that behind the wheel is a human-sized sock monkey. Music: the heavy, “how you like me know